prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Participated projects visible for all on user profile
  If I write a comment on platform meinBerlin and take part in a participation process, everyone can see my profile and in which participation process I took part, even I'm not logged in. It's not anonymous enough.
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `apps/users/views.py`
  Content:
  ```
  1 from django.views.generic.detail import DetailView
  2 
  3 from adhocracy4.projects.models import Project
  4 
  5 from . import models
  6 
  7 
  8 class ProfileView(DetailView):
  9     model = models.User
  10     slug_field = 'username'
  11 
  12     @property
  13     def get_participated_projects(self):
  14         user = self.object
  15 
  16         qs = Project.objects.filter(
  17             action__actor=user
  18         ).distinct()
  19 
  20         return qs
  21
  ```
  --- 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()
  
  ```
  
golden_diff: diff --git a/apps/users/views.py b/apps/users/views.py
  --- a/apps/users/views.py
  +++ b/apps/users/views.py
  @@ -1,20 +1,8 @@
   from django.views.generic.detail import DetailView
   
  -from adhocracy4.projects.models import Project
  -
   from . import models
   
   
   class ProfileView(DetailView):
       model = models.User
       slug_field = 'username'
  -
  -    @property
  -    def get_participated_projects(self):
  -        user = self.object
  -
  -        qs = Project.objects.filter(
  -            action__actor=user
  -        ).distinct()
  -
  -        return qs
  
verification_info: {"golden_diff": "diff --git a/apps/users/views.py b/apps/users/views.py\n--- a/apps/users/views.py\n+++ b/apps/users/views.py\n@@ -1,20 +1,8 @@\n from django.views.generic.detail import DetailView\n \n-from adhocracy4.projects.models import Project\n-\n from . import models\n \n \n class ProfileView(DetailView):\n     model = models.User\n     slug_field = 'username'\n-\n-    @property\n-    def get_participated_projects(self):\n-        user = self.object\n-\n-        qs = Project.objects.filter(\n-            action__actor=user\n-        ).distinct()\n-\n-        return qs\n", "issue": "Participated projects visible for all on user profile\nIf I write a comment on platform meinBerlin and take part in a participation process, everyone can see my profile and in which participation process I took part, even I'm not logged in. It's not anonymous enough.\n", "before_files": [{"content": "from django.views.generic.detail import DetailView\n\nfrom adhocracy4.projects.models import Project\n\nfrom . import models\n\n\nclass ProfileView(DetailView):\n    model = models.User\n    slug_field = 'username'\n\n    @property\n    def get_participated_projects(self):\n        user = self.object\n\n        qs = Project.objects.filter(\n            action__actor=user\n        ).distinct()\n\n        return qs\n", "path": "apps/users/views.py"}], "after_files": [{"content": "from django.views.generic.detail import DetailView\n\nfrom . import models\n\n\nclass ProfileView(DetailView):\n    model = models.User\n    slug_field = 'username'\n", "path": "apps/users/views.py"}]}