fix: updating a poll should return the poll, not an array

openapi/paths/polls@{poll-id}.yaml

@@ -7,7 +7,7 @@ parameters:
       format: int64
 get:
   operationId: get-poll
-  summary: Gets a poll by ID
+  summary: Gets a poll by ID.
   responses:
     '200':
       description: OK
@@ -19,7 +19,7 @@ get:
       $ref: ../components/responses/poll-not-found.yaml
 patch:
   operationId: update-poll
-  summary: Updates a poll
+  summary: Updates a poll.
   requestBody:
     required: true
     content:
@@ -31,19 +31,23 @@ patch:
     - pollAuth: []
   responses:
     '200':
-      description: OK
+      description: Poll was updated.
       content:
         application/json:
           schema:
-            type: array
-            items:
-              $ref: ../components/schemas/poll.yaml
+            $ref: ../components/schemas/poll.yaml
+    '404':
+      $ref: ../components/responses/poll-not-found.yaml
 delete:
   operationId: delete-poll
-  summary: Deletes a poll
+  summary: Deletes a poll.
+  description: >
+    All the Poll data will be permanently erased.
+    This includes all the corollary models (Tally, Ballots, …)
+    Only the Poll's author may delete it.  (and wild admins)
   responses:
     '200':
-      description: OK
+      description: Poll was deleted.
     '404':
       $ref: ../components/responses/poll-not-found.yaml
   security: