We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
We should disable the remap_user_ids command for the time being
We have changes on Staging that need to make their way to Production soon.

The `remap_user_ids` command is not working properly (#1165).

We should disable the command for now so we can deploy recent changes to Production.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `django/cantusdb_project/main_app/management/commands/remap_user_ids.py`
Content:
```
1 from main_app.models import Source, Chant
2 from django.contrib.auth import get_user_model
3 from django.core.management.base import BaseCommand
4 from sys import stdout
5 from django.db.models.query import QuerySet
6 from typing import Optional
7 
8 User = get_user_model()
9 
10 USER_ID_MAPPING = {
11     # Fake user accounts with sequential numbering were created on NewCantus
12     # for OldCantus Indexers. In the time since user accounts were
13     # programmatically synced, new user accounts were created on OldCantus,
14     # which duplicated these IDs. Then, we manually created new user accounts
15     # on NewCantus for these newer users, with new IDs that don't match those
16     # in OldCantus.
17     #
18     # In this dictionary:
19     # - Keys represent the IDs of users recently created on OldCantus, which collide
20     #   with those of NewCantus Indexers
21     # - Values represent the IDs of manually-created users in NewCantus.
22     251610: 251660,
23     251611: 251661,
24     251612: 251662,
25     251613: 251663,
26     251614: 251664,
27     251616: 251665,
28     251617: 251666,
29     251618: 251667,
30     251619: 251668,
31     251620: 251669,
32     251621: 251670,
33     251622: 251671,
34     251623: 251672,
35     251624: 251673,
36     251625: 251674,
37     251626: 251657,
38     251627: 251675,
39     251630: 251676,
40     251632: 251678,
41     251633: 251679,
42     251638: 251656,
43     251639: 251680,
44     251640: 251681,
45     251641: 251682,
46     251642: 251683,
47     251643: 251684,
48     251645: 251685,
49 }
50 
51 
52 def reassign_sources() -> None:
53     CHUNK_SIZE = 1_000
54     sources: QuerySet[Source] = Source.objects.all()
55     sources_count: int = sources.count()
56     start_index: int = 0
57     while start_index <= sources_count:
58         stdout.write(f"processing chunk with {start_index=}\n")
59         chunk: QuerySet[Source] = sources[start_index : start_index + CHUNK_SIZE]
60         for source in chunk:
61             old_creator: Optional[User] = source.created_by
62 
63             updated_id: Optional[int] = None
64             try:
65                 updated_id: int = USER_ID_MAPPING[old_creator.id]
66             except (
67                 KeyError,  # old_creator.id not in USER_ID_MAPPING
68                 AttributeError,  # old_creator is None
69             ):
70                 pass
71 
72             if updated_id is None:
73                 # user ID doesn't need to be remapped
74                 continue
75 
76             updated_creator: Optional[User] = None
77             try:
78                 updated_creator = User.objects.get(id=updated_id)
79             except (
80                 User.DoesNotExist,
81                 AttributeError,
82             ):
83                 pass
84 
85             source.created_by = updated_creator
86             source.save()
87         start_index += CHUNK_SIZE
88 
89 
90 def reassign_chants() -> None:
91     CHUNK_SIZE = 1_000
92     chants: QuerySet[Chant] = Chant.objects.all()
93     chants_count: int = chants.count()
94     start_index: int = 0
95     while start_index <= chants_count:
96         stdout.write(f"processing chunk with {start_index=}\n")
97         chunk: QuerySet[Chant] = chants[start_index : start_index + CHUNK_SIZE]
98         for chant in chunk:
99             old_creator: Optional[User] = chant.created_by
100 
101             updated_id: Optional[int] = None
102             try:
103                 updated_id: int = USER_ID_MAPPING[old_creator.id]
104             except (
105                 KeyError,  # old_creator.id not in USER_ID_MAPPING
106                 AttributeError,  # old_creator is None
107             ):
108                 pass
109 
110             if updated_id is None:
111                 # user ID doesn't need to be remapped
112                 continue
113 
114             updated_creator: Optional[User] = None
115             try:
116                 updated_creator = User.objects.get(id=updated_id)
117             except User.DoesNotExist:
118                 pass
119 
120             chant.created_by = updated_creator
121             chant.save()
122         start_index += CHUNK_SIZE
123 
124 
125 class Command(BaseCommand):
126     def handle(self, *args, **kwargs) -> None:
127         stdout.write("\n\n==== Reassigning Sources ====\n")
128         reassign_sources()
129         stdout.write("\n== All sources successfully remapped! ==\n")
130         stdout.write("\n\n==== Reassigning Chants ====\n")
131         reassign_chants()
132         stdout.write("\n== All chants successfully remapped! ==\n")
133
```
--- 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/django/cantusdb_project/main_app/management/commands/remap_user_ids.py b/django/cantusdb_project/main_app/management/commands/remap_user_ids.py
--- a/django/cantusdb_project/main_app/management/commands/remap_user_ids.py
+++ b/django/cantusdb_project/main_app/management/commands/remap_user_ids.py
@@ -124,6 +124,11 @@
 
 class Command(BaseCommand):
     def handle(self, *args, **kwargs) -> None:
+        error_message = (
+            "As of late November 2023, this command is not working. "
+            "It has been temporarily disabled until the bugs have been worked out."
+        )
+        raise NotImplementedError(error_message)
         stdout.write("\n\n==== Reassigning Sources ====\n")
         reassign_sources()
         stdout.write("\n== All sources successfully remapped! ==\n")

{"golden_diff": "diff --git a/django/cantusdb_project/main_app/management/commands/remap_user_ids.py b/django/cantusdb_project/main_app/management/commands/remap_user_ids.py\n--- a/django/cantusdb_project/main_app/management/commands/remap_user_ids.py\n+++ b/django/cantusdb_project/main_app/management/commands/remap_user_ids.py\n@@ -124,6 +124,11 @@\n \n class Command(BaseCommand):\n     def handle(self, *args, **kwargs) -> None:\n+        error_message = (\n+            \"As of late November 2023, this command is not working. \"\n+            \"It has been temporarily disabled until the bugs have been worked out.\"\n+        )\n+        raise NotImplementedError(error_message)\n         stdout.write(\"\\n\\n==== Reassigning Sources ====\\n\")\n         reassign_sources()\n         stdout.write(\"\\n== All sources successfully remapped! ==\\n\")\n", "issue": "We should disable the remap_user_ids command for the time being\nWe have changes on Staging that need to make their way to Production soon.\r\n\r\nThe `remap_user_ids` command is not working properly (#1165).\r\n\r\nWe should disable the command for now so we can deploy recent changes to Production.\n", "before_files": [{"content": "from main_app.models import Source, Chant\nfrom django.contrib.auth import get_user_model\nfrom django.core.management.base import BaseCommand\nfrom sys import stdout\nfrom django.db.models.query import QuerySet\nfrom typing import Optional\n\nUser = get_user_model()\n\nUSER_ID_MAPPING = {\n    # Fake user accounts with sequential numbering were created on NewCantus\n    # for OldCantus Indexers. In the time since user accounts were\n    # programmatically synced, new user accounts were created on OldCantus,\n    # which duplicated these IDs. Then, we manually created new user accounts\n    # on NewCantus for these newer users, with new IDs that don't match those\n    # in OldCantus.\n    #\n    # In this dictionary:\n    # - Keys represent the IDs of users recently created on OldCantus, which collide\n    #   with those of NewCantus Indexers\n    # - Values represent the IDs of manually-created users in NewCantus.\n    251610: 251660,\n    251611: 251661,\n    251612: 251662,\n    251613: 251663,\n    251614: 251664,\n    251616: 251665,\n    251617: 251666,\n    251618: 251667,\n    251619: 251668,\n    251620: 251669,\n    251621: 251670,\n    251622: 251671,\n    251623: 251672,\n    251624: 251673,\n    251625: 251674,\n    251626: 251657,\n    251627: 251675,\n    251630: 251676,\n    251632: 251678,\n    251633: 251679,\n    251638: 251656,\n    251639: 251680,\n    251640: 251681,\n    251641: 251682,\n    251642: 251683,\n    251643: 251684,\n    251645: 251685,\n}\n\n\ndef reassign_sources() -> None:\n    CHUNK_SIZE = 1_000\n    sources: QuerySet[Source] = Source.objects.all()\n    sources_count: int = sources.count()\n    start_index: int = 0\n    while start_index <= sources_count:\n        stdout.write(f\"processing chunk with {start_index=}\\n\")\n        chunk: QuerySet[Source] = sources[start_index : start_index + CHUNK_SIZE]\n        for source in chunk:\n            old_creator: Optional[User] = source.created_by\n\n            updated_id: Optional[int] = None\n            try:\n                updated_id: int = USER_ID_MAPPING[old_creator.id]\n            except (\n                KeyError,  # old_creator.id not in USER_ID_MAPPING\n                AttributeError,  # old_creator is None\n            ):\n                pass\n\n            if updated_id is None:\n                # user ID doesn't need to be remapped\n                continue\n\n            updated_creator: Optional[User] = None\n            try:\n                updated_creator = User.objects.get(id=updated_id)\n            except (\n                User.DoesNotExist,\n                AttributeError,\n            ):\n                pass\n\n            source.created_by = updated_creator\n            source.save()\n        start_index += CHUNK_SIZE\n\n\ndef reassign_chants() -> None:\n    CHUNK_SIZE = 1_000\n    chants: QuerySet[Chant] = Chant.objects.all()\n    chants_count: int = chants.count()\n    start_index: int = 0\n    while start_index <= chants_count:\n        stdout.write(f\"processing chunk with {start_index=}\\n\")\n        chunk: QuerySet[Chant] = chants[start_index : start_index + CHUNK_SIZE]\n        for chant in chunk:\n            old_creator: Optional[User] = chant.created_by\n\n            updated_id: Optional[int] = None\n            try:\n                updated_id: int = USER_ID_MAPPING[old_creator.id]\n            except (\n                KeyError,  # old_creator.id not in USER_ID_MAPPING\n                AttributeError,  # old_creator is None\n            ):\n                pass\n\n            if updated_id is None:\n                # user ID doesn't need to be remapped\n                continue\n\n            updated_creator: Optional[User] = None\n            try:\n                updated_creator = User.objects.get(id=updated_id)\n            except User.DoesNotExist:\n                pass\n\n            chant.created_by = updated_creator\n            chant.save()\n        start_index += CHUNK_SIZE\n\n\nclass Command(BaseCommand):\n    def handle(self, *args, **kwargs) -> None:\n        stdout.write(\"\\n\\n==== Reassigning Sources ====\\n\")\n        reassign_sources()\n        stdout.write(\"\\n== All sources successfully remapped! ==\\n\")\n        stdout.write(\"\\n\\n==== Reassigning Chants ====\\n\")\n        reassign_chants()\n        stdout.write(\"\\n== All chants successfully remapped! ==\\n\")\n", "path": "django/cantusdb_project/main_app/management/commands/remap_user_ids.py"}], "after_files": [{"content": "from main_app.models import Source, Chant\nfrom django.contrib.auth import get_user_model\nfrom django.core.management.base import BaseCommand\nfrom sys import stdout\nfrom django.db.models.query import QuerySet\nfrom typing import Optional\n\nUser = get_user_model()\n\nUSER_ID_MAPPING = {\n    # Fake user accounts with sequential numbering were created on NewCantus\n    # for OldCantus Indexers. In the time since user accounts were\n    # programmatically synced, new user accounts were created on OldCantus,\n    # which duplicated these IDs. Then, we manually created new user accounts\n    # on NewCantus for these newer users, with new IDs that don't match those\n    # in OldCantus.\n    #\n    # In this dictionary:\n    # - Keys represent the IDs of users recently created on OldCantus, which collide\n    #   with those of NewCantus Indexers\n    # - Values represent the IDs of manually-created users in NewCantus.\n    251610: 251660,\n    251611: 251661,\n    251612: 251662,\n    251613: 251663,\n    251614: 251664,\n    251616: 251665,\n    251617: 251666,\n    251618: 251667,\n    251619: 251668,\n    251620: 251669,\n    251621: 251670,\n    251622: 251671,\n    251623: 251672,\n    251624: 251673,\n    251625: 251674,\n    251626: 251657,\n    251627: 251675,\n    251630: 251676,\n    251632: 251678,\n    251633: 251679,\n    251638: 251656,\n    251639: 251680,\n    251640: 251681,\n    251641: 251682,\n    251642: 251683,\n    251643: 251684,\n    251645: 251685,\n}\n\n\ndef reassign_sources() -> None:\n    CHUNK_SIZE = 1_000\n    sources: QuerySet[Source] = Source.objects.all()\n    sources_count: int = sources.count()\n    start_index: int = 0\n    while start_index <= sources_count:\n        stdout.write(f\"processing chunk with {start_index=}\\n\")\n        chunk: QuerySet[Source] = sources[start_index : start_index + CHUNK_SIZE]\n        for source in chunk:\n            old_creator: Optional[User] = source.created_by\n\n            updated_id: Optional[int] = None\n            try:\n                updated_id: int = USER_ID_MAPPING[old_creator.id]\n            except (\n                KeyError,  # old_creator.id not in USER_ID_MAPPING\n                AttributeError,  # old_creator is None\n            ):\n                pass\n\n            if updated_id is None:\n                # user ID doesn't need to be remapped\n                continue\n\n            updated_creator: Optional[User] = None\n            try:\n                updated_creator = User.objects.get(id=updated_id)\n            except (\n                User.DoesNotExist,\n                AttributeError,\n            ):\n                pass\n\n            source.created_by = updated_creator\n            source.save()\n        start_index += CHUNK_SIZE\n\n\ndef reassign_chants() -> None:\n    CHUNK_SIZE = 1_000\n    chants: QuerySet[Chant] = Chant.objects.all()\n    chants_count: int = chants.count()\n    start_index: int = 0\n    while start_index <= chants_count:\n        stdout.write(f\"processing chunk with {start_index=}\\n\")\n        chunk: QuerySet[Chant] = chants[start_index : start_index + CHUNK_SIZE]\n        for chant in chunk:\n            old_creator: Optional[User] = chant.created_by\n\n            updated_id: Optional[int] = None\n            try:\n                updated_id: int = USER_ID_MAPPING[old_creator.id]\n            except (\n                KeyError,  # old_creator.id not in USER_ID_MAPPING\n                AttributeError,  # old_creator is None\n            ):\n                pass\n\n            if updated_id is None:\n                # user ID doesn't need to be remapped\n                continue\n\n            updated_creator: Optional[User] = None\n            try:\n                updated_creator = User.objects.get(id=updated_id)\n            except User.DoesNotExist:\n                pass\n\n            chant.created_by = updated_creator\n            chant.save()\n        start_index += CHUNK_SIZE\n\n\nclass Command(BaseCommand):\n    def handle(self, *args, **kwargs) -> None:\n        error_message = (\n            \"As of late November 2023, this command is not working. \"\n            \"It has been temporarily disabled until the bugs have been worked out.\"\n        )\n        raise NotImplementedError(error_message)\n        stdout.write(\"\\n\\n==== Reassigning Sources ====\\n\")\n        reassign_sources()\n        stdout.write(\"\\n== All sources successfully remapped! ==\\n\")\n        stdout.write(\"\\n\\n==== Reassigning Chants ====\\n\")\n        reassign_chants()\n        stdout.write(\"\\n== All chants successfully remapped! ==\\n\")\n", "path": "django/cantusdb_project/main_app/management/commands/remap_user_ids.py"}]}