1 files changed, 4 insertions, 5 deletions
diff --git a/synapse/replication/slave/storage/groups.py b/synapse/replication/slave/storage/groups.py
index e933b170bb..28a46edd28 100644
--- a/synapse/replication/slave/storage/groups.py
+++ b/synapse/replication/slave/storage/groups.py
@@ -27,10 +27,11 @@ class SlavedGroupServerStore(BaseSlavedStore):
         self.hs = hs
 
         self._group_updates_id_gen = SlavedIdTracker(
-            db_conn, "local_group_updates", "stream_id",
+            db_conn, "local_group_updates", "stream_id"
         )
         self._group_updates_stream_cache = StreamChangeCache(
-            "_group_updates_stream_cache", self._group_updates_id_gen.get_current_token(),
+            "_group_updates_stream_cache",
+            self._group_updates_id_gen.get_current_token(),
         )
 
     get_groups_changes_for_user = __func__(DataStore.get_groups_changes_for_user)
@@ -46,9 +47,7 @@ class SlavedGroupServerStore(BaseSlavedStore):
         if stream_name == "groups":
             self._group_updates_id_gen.advance(token)
             for row in rows:
-                self._group_updates_stream_cache.entity_has_changed(
-                    row.user_id, token
-                )
+                self._group_updates_stream_cache.entity_has_changed(row.user_id, token)
 
         return super(SlavedGroupServerStore, self).process_replication_rows(
             stream_name, token, rows