prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  testing 4293: can't edit polls somebody else created even if I have the rights
  **URL:** https://meinberlin-dev.liqd.net/dashboard/modules/umfrage-24-4/poll/
  **user:** group member
  **expected behaviour:** I can edit polls somebody else created if I have the right to do so
  **behaviour:** cannot save, getting an red altert
  **important screensize:**
  **device & browser:** 
   **Comment/Question:** also true for new polls whose rights have been given to me. for polls I started myself it is fine.
  
  ![Bildschirmfoto 2021-07-05 um 10 32 14](https://user-images.githubusercontent.com/35491681/124444710-2bc75180-dd7f-11eb-946b-78cc99c9c975.png)
  
  Screenshot?
  
  
  </issue>
  <code>
  [start of meinberlin/apps/polls/rules.py]
  1 import rules
  2 
  3 from adhocracy4.modules import predicates as module_predicates
  4 
  5 rules.set_perm(
  6     'a4polls.change_poll',
  7     module_predicates.is_context_initiator |
  8     module_predicates.is_context_moderator
  9 )
  10
  [end of meinberlin/apps/polls/rules.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/meinberlin/apps/polls/rules.py b/meinberlin/apps/polls/rules.py
  --- a/meinberlin/apps/polls/rules.py
  +++ b/meinberlin/apps/polls/rules.py
  @@ -4,6 +4,5 @@
   
   rules.set_perm(
       'a4polls.change_poll',
  -    module_predicates.is_context_initiator |
  -    module_predicates.is_context_moderator
  +    module_predicates.is_project_admin
   )
  
verification_info: {"golden_diff": "diff --git a/meinberlin/apps/polls/rules.py b/meinberlin/apps/polls/rules.py\n--- a/meinberlin/apps/polls/rules.py\n+++ b/meinberlin/apps/polls/rules.py\n@@ -4,6 +4,5 @@\n \n rules.set_perm(\n     'a4polls.change_poll',\n-    module_predicates.is_context_initiator |\n-    module_predicates.is_context_moderator\n+    module_predicates.is_project_admin\n )\n", "issue": "testing 4293: can't edit polls somebody else created even if I have the rights\n**URL:** https://meinberlin-dev.liqd.net/dashboard/modules/umfrage-24-4/poll/\r\n**user:** group member\r\n**expected behaviour:** I can edit polls somebody else created if I have the right to do so\r\n**behaviour:** cannot save, getting an red altert\r\n**important screensize:**\r\n**device & browser:** \r\n **Comment/Question:** also true for new polls whose rights have been given to me. for polls I started myself it is fine.\r\n\r\n![Bildschirmfoto 2021-07-05 um 10 32 14](https://user-images.githubusercontent.com/35491681/124444710-2bc75180-dd7f-11eb-946b-78cc99c9c975.png)\r\n\r\nScreenshot?\r\n\n", "before_files": [{"content": "import rules\n\nfrom adhocracy4.modules import predicates as module_predicates\n\nrules.set_perm(\n    'a4polls.change_poll',\n    module_predicates.is_context_initiator |\n    module_predicates.is_context_moderator\n)\n", "path": "meinberlin/apps/polls/rules.py"}]}