We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
when I log out while  I am on my profile page I get a 500


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `euth/follows/templatetags/follow_tags.py`
Content:
```
1 from django import template
2 
3 from .. import models
4 
5 register = template.Library()
6 
7 
8 @register.assignment_tag()
9 def is_following(user, project):
10     return models.Follow.objects.filter(
11         enabled=True,
12         project=project,
13         creator=user
14     ).exists()
15
```
--- 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/euth/follows/templatetags/follow_tags.py b/euth/follows/templatetags/follow_tags.py
--- a/euth/follows/templatetags/follow_tags.py
+++ b/euth/follows/templatetags/follow_tags.py
@@ -7,8 +7,11 @@
 
 @register.assignment_tag()
 def is_following(user, project):
-    return models.Follow.objects.filter(
-        enabled=True,
-        project=project,
-        creator=user
-    ).exists()
+    if not user.is_anonymous():
+        return models.Follow.objects.filter(
+            enabled=True,
+            project=project,
+            creator=user
+        ).exists()
+    else:
+        return False

{"golden_diff": "diff --git a/euth/follows/templatetags/follow_tags.py b/euth/follows/templatetags/follow_tags.py\n--- a/euth/follows/templatetags/follow_tags.py\n+++ b/euth/follows/templatetags/follow_tags.py\n@@ -7,8 +7,11 @@\n \n @register.assignment_tag()\n def is_following(user, project):\n-    return models.Follow.objects.filter(\n-        enabled=True,\n-        project=project,\n-        creator=user\n-    ).exists()\n+    if not user.is_anonymous():\n+        return models.Follow.objects.filter(\n+            enabled=True,\n+            project=project,\n+            creator=user\n+        ).exists()\n+    else:\n+        return False\n", "issue": "when I log out while  I am on my profile page I get a 500\n\n", "before_files": [{"content": "from django import template\n\nfrom .. import models\n\nregister = template.Library()\n\n\n@register.assignment_tag()\ndef is_following(user, project):\n    return models.Follow.objects.filter(\n        enabled=True,\n        project=project,\n        creator=user\n    ).exists()\n", "path": "euth/follows/templatetags/follow_tags.py"}], "after_files": [{"content": "from django import template\n\nfrom .. import models\n\nregister = template.Library()\n\n\n@register.assignment_tag()\ndef is_following(user, project):\n    if not user.is_anonymous():\n        return models.Follow.objects.filter(\n            enabled=True,\n            project=project,\n            creator=user\n        ).exists()\n    else:\n        return False\n", "path": "euth/follows/templatetags/follow_tags.py"}]}