We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
I have an issue when I import the export json file
## Important Details

On-Premise w/ Docker, version 9.1.2

## Description

I have two servers with a sentry. There are several projects on the first server, and I would like to copy these projects to the clear second server.
I use the export/import commands. The export command works fine. However, when I run the import command, I get an error.

## Steps to Reproduce

1. Run command 'sentry export sentry_export.json' on the first server
2. Run command 'sentry import sentry_export.json' on the second server
3. Get an error

Good items to include here include:

`Traceback (most recent call last):
  File "/usr/local/bin/sentry", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python2.7/site-packages/sentry/runner/__init__.py", line 162, in main
    cli(prog_name=get_prog(), obj={}, max_content_width=100)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/sentry/runner/decorators.py", line 36, in inner
    return ctx.invoke(f, *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/sentry/runner/commands/backup.py", line 21, in import_
    for obj in serializers.deserialize("json", src, stream=True, use_natural_keys=True):
  File "/usr/local/lib/python2.7/site-packages/django/core/serializers/json.py", line 76, in Deserializer
    six.reraise(DeserializationError, DeserializationError(e), sys.exc_info()[2])
  File "/usr/local/lib/python2.7/site-packages/django/core/serializers/json.py", line 70, in Deserializer
    for obj in PythonDeserializer(objects, **options):
  File "/usr/local/lib/python2.7/site-packages/django/core/serializers/python.py", line 140, in Deserializer
    data[field.name] = field.to_python(field_value)
  File "/usr/local/lib/python2.7/site-packages/sentry/db/models/fields/array.py", line 56, in to_python
    value = json.loads(value)
  File "/usr/local/lib/python2.7/site-packages/sentry/utils/json.py", line 111, in loads
    return _default_decoder.decode(value)
  File "/usr/local/lib/python2.7/site-packages/simplejson/decoder.py", line 370, in decode
    obj, end = self.raw_decode(s)
  File "/usr/local/lib/python2.7/site-packages/simplejson/decoder.py", line 400, in raw_decode
    return self.scan_once(s, idx=_w(s, idx).end())
django.core.serializers.base.DeserializationError: Expecting value: line 1 column 2 (char 1)`

### What you expected to happen

Import works fine too

### Possible Solution

[If you have an idea on how this could be solved include that detail here.]


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `src/sentry/runner/commands/backup.py`
Content:
```
1 import click
2 from sentry.runner.decorators import configuration
3 
4 
5 @click.command(name="import")
6 @click.argument("src", type=click.File("rb"))
7 @configuration
8 def import_(src):
9     "Imports data from a Sentry export."
10 
11     from django.core import serializers
12 
13     for obj in serializers.deserialize("json", src, stream=True, use_natural_keys=True):
14         obj.save()
15 
16 
17 def sort_dependencies():
18     """
19     Similar to Django's except that we discard the important of natural keys
20     when sorting dependencies (i.e. it works without them).
21     """
22     from django.apps import apps
23 
24     # Process the list of models, and get the list of dependencies
25     model_dependencies = []
26     models = set()
27     for app_config in apps.get_app_configs():
28         model_list = app_config.get_models()
29 
30         for model in model_list:
31             models.add(model)
32             # Add any explicitly defined dependencies
33             if hasattr(model, "natural_key"):
34                 deps = getattr(model.natural_key, "dependencies", [])
35                 if deps:
36                     deps = [apps.get_model(*d.split(".")) for d in deps]
37             else:
38                 deps = []
39 
40             # Now add a dependency for any FK relation with a model that
41             # defines a natural key
42             for field in model._meta.fields:
43                 if hasattr(field.rel, "to"):
44                     rel_model = field.rel.to
45                     if rel_model != model:
46                         deps.append(rel_model)
47 
48             # Also add a dependency for any simple M2M relation with a model
49             # that defines a natural key.  M2M relations with explicit through
50             # models don't count as dependencies.
51             for field in model._meta.many_to_many:
52                 rel_model = field.rel.to
53                 if rel_model != model:
54                     deps.append(rel_model)
55             model_dependencies.append((model, deps))
56 
57     model_dependencies.reverse()
58     # Now sort the models to ensure that dependencies are met. This
59     # is done by repeatedly iterating over the input list of models.
60     # If all the dependencies of a given model are in the final list,
61     # that model is promoted to the end of the final list. This process
62     # continues until the input list is empty, or we do a full iteration
63     # over the input models without promoting a model to the final list.
64     # If we do a full iteration without a promotion, that means there are
65     # circular dependencies in the list.
66     model_list = []
67     while model_dependencies:
68         skipped = []
69         changed = False
70         while model_dependencies:
71             model, deps = model_dependencies.pop()
72 
73             # If all of the models in the dependency list are either already
74             # on the final model list, or not on the original serialization list,
75             # then we've found another model with all it's dependencies satisfied.
76             found = True
77             for candidate in ((d not in models or d in model_list) for d in deps):
78                 if not candidate:
79                     found = False
80             if found:
81                 model_list.append(model)
82                 changed = True
83             else:
84                 skipped.append((model, deps))
85         if not changed:
86             raise RuntimeError(
87                 "Can't resolve dependencies for %s in serialized app list."
88                 % ", ".join(
89                     f"{model._meta.app_label}.{model._meta.object_name}"
90                     for model, deps in sorted(skipped, key=lambda obj: obj[0].__name__)
91                 )
92             )
93         model_dependencies = skipped
94 
95     return model_list
96 
97 
98 @click.command()
99 @click.argument("dest", default="-", type=click.File("w"))
100 @click.option("--silent", "-q", default=False, is_flag=True, help="Silence all debug output.")
101 @click.option(
102     "--indent", default=2, help="Number of spaces to indent for the JSON output. (default: 2)"
103 )
104 @click.option("--exclude", default=None, help="Models to exclude from export.", metavar="MODELS")
105 @configuration
106 def export(dest, silent, indent, exclude):
107     "Exports core metadata for the Sentry installation."
108 
109     if exclude is None:
110         exclude = ()
111     else:
112         exclude = exclude.lower().split(",")
113 
114     from django.core import serializers
115 
116     def yield_objects():
117         # Collate the objects to be serialized.
118         for model in sort_dependencies():
119             if (
120                 not getattr(model, "__core__", True)
121                 or model.__name__.lower() in exclude
122                 or model._meta.proxy
123             ):
124                 if not silent:
125                     click.echo(f">> Skipping model <{model.__name__}>", err=True)
126                 continue
127 
128             queryset = model._base_manager.order_by(model._meta.pk.name)
129             yield from queryset.iterator()
130 
131     if not silent:
132         click.echo(">> Beginning export", err=True)
133     serializers.serialize(
134         "json", yield_objects(), indent=indent, stream=dest, use_natural_foreign_keys=True
135     )
136
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/src/sentry/runner/commands/backup.py b/src/sentry/runner/commands/backup.py
--- a/src/sentry/runner/commands/backup.py
+++ b/src/sentry/runner/commands/backup.py
@@ -1,4 +1,11 @@
 import click
+
+from django.apps import apps
+from django.core import management, serializers
+from django.db import connection
+
+from io import StringIO
+
 from sentry.runner.decorators import configuration
 
 
@@ -8,11 +15,17 @@
 def import_(src):
     "Imports data from a Sentry export."
 
-    from django.core import serializers
-
     for obj in serializers.deserialize("json", src, stream=True, use_natural_keys=True):
         obj.save()
 
+    sequence_reset_sql = StringIO()
+
+    for app in apps.get_app_configs():
+        management.call_command("sqlsequencereset", app.label, stdout=sequence_reset_sql)
+
+    with connection.cursor() as cursor:
+        cursor.execute(sequence_reset_sql.getvalue())
+
 
 def sort_dependencies():
     """
@@ -111,8 +124,6 @@
     else:
         exclude = exclude.lower().split(",")
 
-    from django.core import serializers
-
     def yield_objects():
         # Collate the objects to be serialized.
         for model in sort_dependencies():

{"golden_diff": "diff --git a/src/sentry/runner/commands/backup.py b/src/sentry/runner/commands/backup.py\n--- a/src/sentry/runner/commands/backup.py\n+++ b/src/sentry/runner/commands/backup.py\n@@ -1,4 +1,11 @@\n import click\n+\n+from django.apps import apps\n+from django.core import management, serializers\n+from django.db import connection\n+\n+from io import StringIO\n+\n from sentry.runner.decorators import configuration\n \n \n@@ -8,11 +15,17 @@\n def import_(src):\n     \"Imports data from a Sentry export.\"\n \n-    from django.core import serializers\n-\n     for obj in serializers.deserialize(\"json\", src, stream=True, use_natural_keys=True):\n         obj.save()\n \n+    sequence_reset_sql = StringIO()\n+\n+    for app in apps.get_app_configs():\n+        management.call_command(\"sqlsequencereset\", app.label, stdout=sequence_reset_sql)\n+\n+    with connection.cursor() as cursor:\n+        cursor.execute(sequence_reset_sql.getvalue())\n+\n \n def sort_dependencies():\n     \"\"\"\n@@ -111,8 +124,6 @@\n     else:\n         exclude = exclude.lower().split(\",\")\n \n-    from django.core import serializers\n-\n     def yield_objects():\n         # Collate the objects to be serialized.\n         for model in sort_dependencies():\n", "issue": "I have an issue when I import the export json file\n## Important Details\r\n\r\nOn-Premise w/ Docker, version 9.1.2\r\n\r\n## Description\r\n\r\nI have two servers with a sentry. There are several projects on the first server, and I would like to copy these projects to the clear second server.\r\nI use the export/import commands. The export command works fine. However, when I run the import command, I get an error.\r\n\r\n## Steps to Reproduce\r\n\r\n1. Run command 'sentry export sentry_export.json' on the first server\r\n2. Run command 'sentry import sentry_export.json' on the second server\r\n3. Get an error\r\n\r\nGood items to include here include:\r\n\r\n`Traceback (most recent call last):\r\n  File \"/usr/local/bin/sentry\", line 8, in <module>\r\n    sys.exit(main())\r\n  File \"/usr/local/lib/python2.7/site-packages/sentry/runner/__init__.py\", line 162, in main\r\n    cli(prog_name=get_prog(), obj={}, max_content_width=100)\r\n  File \"/usr/local/lib/python2.7/site-packages/click/core.py\", line 722, in __call__\r\n    return self.main(*args, **kwargs)\r\n  File \"/usr/local/lib/python2.7/site-packages/click/core.py\", line 697, in main\r\n    rv = self.invoke(ctx)\r\n  File \"/usr/local/lib/python2.7/site-packages/click/core.py\", line 1066, in invoke\r\n    return _process_result(sub_ctx.command.invoke(sub_ctx))\r\n  File \"/usr/local/lib/python2.7/site-packages/click/core.py\", line 895, in invoke\r\n    return ctx.invoke(self.callback, **ctx.params)\r\n  File \"/usr/local/lib/python2.7/site-packages/click/core.py\", line 535, in invoke\r\n    return callback(*args, **kwargs)\r\n  File \"/usr/local/lib/python2.7/site-packages/click/decorators.py\", line 17, in new_func\r\n    return f(get_current_context(), *args, **kwargs)\r\n  File \"/usr/local/lib/python2.7/site-packages/sentry/runner/decorators.py\", line 36, in inner\r\n    return ctx.invoke(f, *args, **kwargs)\r\n  File \"/usr/local/lib/python2.7/site-packages/click/core.py\", line 535, in invoke\r\n    return callback(*args, **kwargs)\r\n  File \"/usr/local/lib/python2.7/site-packages/sentry/runner/commands/backup.py\", line 21, in import_\r\n    for obj in serializers.deserialize(\"json\", src, stream=True, use_natural_keys=True):\r\n  File \"/usr/local/lib/python2.7/site-packages/django/core/serializers/json.py\", line 76, in Deserializer\r\n    six.reraise(DeserializationError, DeserializationError(e), sys.exc_info()[2])\r\n  File \"/usr/local/lib/python2.7/site-packages/django/core/serializers/json.py\", line 70, in Deserializer\r\n    for obj in PythonDeserializer(objects, **options):\r\n  File \"/usr/local/lib/python2.7/site-packages/django/core/serializers/python.py\", line 140, in Deserializer\r\n    data[field.name] = field.to_python(field_value)\r\n  File \"/usr/local/lib/python2.7/site-packages/sentry/db/models/fields/array.py\", line 56, in to_python\r\n    value = json.loads(value)\r\n  File \"/usr/local/lib/python2.7/site-packages/sentry/utils/json.py\", line 111, in loads\r\n    return _default_decoder.decode(value)\r\n  File \"/usr/local/lib/python2.7/site-packages/simplejson/decoder.py\", line 370, in decode\r\n    obj, end = self.raw_decode(s)\r\n  File \"/usr/local/lib/python2.7/site-packages/simplejson/decoder.py\", line 400, in raw_decode\r\n    return self.scan_once(s, idx=_w(s, idx).end())\r\ndjango.core.serializers.base.DeserializationError: Expecting value: line 1 column 2 (char 1)`\r\n\r\n### What you expected to happen\r\n\r\nImport works fine too\r\n\r\n### Possible Solution\r\n\r\n[If you have an idea on how this could be solved include that detail here.]\r\n\n", "before_files": [{"content": "import click\nfrom sentry.runner.decorators import configuration\n\n\n@click.command(name=\"import\")\n@click.argument(\"src\", type=click.File(\"rb\"))\n@configuration\ndef import_(src):\n    \"Imports data from a Sentry export.\"\n\n    from django.core import serializers\n\n    for obj in serializers.deserialize(\"json\", src, stream=True, use_natural_keys=True):\n        obj.save()\n\n\ndef sort_dependencies():\n    \"\"\"\n    Similar to Django's except that we discard the important of natural keys\n    when sorting dependencies (i.e. it works without them).\n    \"\"\"\n    from django.apps import apps\n\n    # Process the list of models, and get the list of dependencies\n    model_dependencies = []\n    models = set()\n    for app_config in apps.get_app_configs():\n        model_list = app_config.get_models()\n\n        for model in model_list:\n            models.add(model)\n            # Add any explicitly defined dependencies\n            if hasattr(model, \"natural_key\"):\n                deps = getattr(model.natural_key, \"dependencies\", [])\n                if deps:\n                    deps = [apps.get_model(*d.split(\".\")) for d in deps]\n            else:\n                deps = []\n\n            # Now add a dependency for any FK relation with a model that\n            # defines a natural key\n            for field in model._meta.fields:\n                if hasattr(field.rel, \"to\"):\n                    rel_model = field.rel.to\n                    if rel_model != model:\n                        deps.append(rel_model)\n\n            # Also add a dependency for any simple M2M relation with a model\n            # that defines a natural key.  M2M relations with explicit through\n            # models don't count as dependencies.\n            for field in model._meta.many_to_many:\n                rel_model = field.rel.to\n                if rel_model != model:\n                    deps.append(rel_model)\n            model_dependencies.append((model, deps))\n\n    model_dependencies.reverse()\n    # Now sort the models to ensure that dependencies are met. This\n    # is done by repeatedly iterating over the input list of models.\n    # If all the dependencies of a given model are in the final list,\n    # that model is promoted to the end of the final list. This process\n    # continues until the input list is empty, or we do a full iteration\n    # over the input models without promoting a model to the final list.\n    # If we do a full iteration without a promotion, that means there are\n    # circular dependencies in the list.\n    model_list = []\n    while model_dependencies:\n        skipped = []\n        changed = False\n        while model_dependencies:\n            model, deps = model_dependencies.pop()\n\n            # If all of the models in the dependency list are either already\n            # on the final model list, or not on the original serialization list,\n            # then we've found another model with all it's dependencies satisfied.\n            found = True\n            for candidate in ((d not in models or d in model_list) for d in deps):\n                if not candidate:\n                    found = False\n            if found:\n                model_list.append(model)\n                changed = True\n            else:\n                skipped.append((model, deps))\n        if not changed:\n            raise RuntimeError(\n                \"Can't resolve dependencies for %s in serialized app list.\"\n                % \", \".join(\n                    f\"{model._meta.app_label}.{model._meta.object_name}\"\n                    for model, deps in sorted(skipped, key=lambda obj: obj[0].__name__)\n                )\n            )\n        model_dependencies = skipped\n\n    return model_list\n\n\n@click.command()\n@click.argument(\"dest\", default=\"-\", type=click.File(\"w\"))\n@click.option(\"--silent\", \"-q\", default=False, is_flag=True, help=\"Silence all debug output.\")\n@click.option(\n    \"--indent\", default=2, help=\"Number of spaces to indent for the JSON output. (default: 2)\"\n)\n@click.option(\"--exclude\", default=None, help=\"Models to exclude from export.\", metavar=\"MODELS\")\n@configuration\ndef export(dest, silent, indent, exclude):\n    \"Exports core metadata for the Sentry installation.\"\n\n    if exclude is None:\n        exclude = ()\n    else:\n        exclude = exclude.lower().split(\",\")\n\n    from django.core import serializers\n\n    def yield_objects():\n        # Collate the objects to be serialized.\n        for model in sort_dependencies():\n            if (\n                not getattr(model, \"__core__\", True)\n                or model.__name__.lower() in exclude\n                or model._meta.proxy\n            ):\n                if not silent:\n                    click.echo(f\">> Skipping model <{model.__name__}>\", err=True)\n                continue\n\n            queryset = model._base_manager.order_by(model._meta.pk.name)\n            yield from queryset.iterator()\n\n    if not silent:\n        click.echo(\">> Beginning export\", err=True)\n    serializers.serialize(\n        \"json\", yield_objects(), indent=indent, stream=dest, use_natural_foreign_keys=True\n    )\n", "path": "src/sentry/runner/commands/backup.py"}], "after_files": [{"content": "import click\n\nfrom django.apps import apps\nfrom django.core import management, serializers\nfrom django.db import connection\n\nfrom io import StringIO\n\nfrom sentry.runner.decorators import configuration\n\n\n@click.command(name=\"import\")\n@click.argument(\"src\", type=click.File(\"rb\"))\n@configuration\ndef import_(src):\n    \"Imports data from a Sentry export.\"\n\n    for obj in serializers.deserialize(\"json\", src, stream=True, use_natural_keys=True):\n        obj.save()\n\n    sequence_reset_sql = StringIO()\n\n    for app in apps.get_app_configs():\n        management.call_command(\"sqlsequencereset\", app.label, stdout=sequence_reset_sql)\n\n    with connection.cursor() as cursor:\n        cursor.execute(sequence_reset_sql.getvalue())\n\n\ndef sort_dependencies():\n    \"\"\"\n    Similar to Django's except that we discard the important of natural keys\n    when sorting dependencies (i.e. it works without them).\n    \"\"\"\n    from django.apps import apps\n\n    # Process the list of models, and get the list of dependencies\n    model_dependencies = []\n    models = set()\n    for app_config in apps.get_app_configs():\n        model_list = app_config.get_models()\n\n        for model in model_list:\n            models.add(model)\n            # Add any explicitly defined dependencies\n            if hasattr(model, \"natural_key\"):\n                deps = getattr(model.natural_key, \"dependencies\", [])\n                if deps:\n                    deps = [apps.get_model(*d.split(\".\")) for d in deps]\n            else:\n                deps = []\n\n            # Now add a dependency for any FK relation with a model that\n            # defines a natural key\n            for field in model._meta.fields:\n                if hasattr(field.rel, \"to\"):\n                    rel_model = field.rel.to\n                    if rel_model != model:\n                        deps.append(rel_model)\n\n            # Also add a dependency for any simple M2M relation with a model\n            # that defines a natural key.  M2M relations with explicit through\n            # models don't count as dependencies.\n            for field in model._meta.many_to_many:\n                rel_model = field.rel.to\n                if rel_model != model:\n                    deps.append(rel_model)\n            model_dependencies.append((model, deps))\n\n    model_dependencies.reverse()\n    # Now sort the models to ensure that dependencies are met. This\n    # is done by repeatedly iterating over the input list of models.\n    # If all the dependencies of a given model are in the final list,\n    # that model is promoted to the end of the final list. This process\n    # continues until the input list is empty, or we do a full iteration\n    # over the input models without promoting a model to the final list.\n    # If we do a full iteration without a promotion, that means there are\n    # circular dependencies in the list.\n    model_list = []\n    while model_dependencies:\n        skipped = []\n        changed = False\n        while model_dependencies:\n            model, deps = model_dependencies.pop()\n\n            # If all of the models in the dependency list are either already\n            # on the final model list, or not on the original serialization list,\n            # then we've found another model with all it's dependencies satisfied.\n            found = True\n            for candidate in ((d not in models or d in model_list) for d in deps):\n                if not candidate:\n                    found = False\n            if found:\n                model_list.append(model)\n                changed = True\n            else:\n                skipped.append((model, deps))\n        if not changed:\n            raise RuntimeError(\n                \"Can't resolve dependencies for %s in serialized app list.\"\n                % \", \".join(\n                    f\"{model._meta.app_label}.{model._meta.object_name}\"\n                    for model, deps in sorted(skipped, key=lambda obj: obj[0].__name__)\n                )\n            )\n        model_dependencies = skipped\n\n    return model_list\n\n\n@click.command()\n@click.argument(\"dest\", default=\"-\", type=click.File(\"w\"))\n@click.option(\"--silent\", \"-q\", default=False, is_flag=True, help=\"Silence all debug output.\")\n@click.option(\n    \"--indent\", default=2, help=\"Number of spaces to indent for the JSON output. (default: 2)\"\n)\n@click.option(\"--exclude\", default=None, help=\"Models to exclude from export.\", metavar=\"MODELS\")\n@configuration\ndef export(dest, silent, indent, exclude):\n    \"Exports core metadata for the Sentry installation.\"\n\n    if exclude is None:\n        exclude = ()\n    else:\n        exclude = exclude.lower().split(\",\")\n\n    def yield_objects():\n        # Collate the objects to be serialized.\n        for model in sort_dependencies():\n            if (\n                not getattr(model, \"__core__\", True)\n                or model.__name__.lower() in exclude\n                or model._meta.proxy\n            ):\n                if not silent:\n                    click.echo(f\">> Skipping model <{model.__name__}>\", err=True)\n                continue\n\n            queryset = model._base_manager.order_by(model._meta.pk.name)\n            yield from queryset.iterator()\n\n    if not silent:\n        click.echo(\">> Beginning export\", err=True)\n    serializers.serialize(\n        \"json\", yield_objects(), indent=indent, stream=dest, use_natural_foreign_keys=True\n    )\n", "path": "src/sentry/runner/commands/backup.py"}]}