Fix typo

matrix-org · Sep 15, 2017 · 4a94eb3 · 4a94eb3
1 parent 3a0cee2
commit 4a94eb3
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
@@ -338,7 +338,7 @@ def get_user_ids_changed(self, user_id, from_token):
                         etype, state_key = key
                         if etype != EventTypes.Member:
                             continue
-                        possibly_changed.append(state_key)
+                        possibly_changed.add(state_key)
                     break
 
             # If there has been any change in membership, include them in the