Merge branch 'develop' into madlittlemods/return-historical-events-in-order-from-backfill

Conflicts:
	scripts-dev/complement.sh
	synapse/handlers/room_batch.py

1 files changed, 5 insertions, 7 deletions

diff --git a/synapse/events/builder.py b/synapse/events/builder.py

index 4f409f31e1..eb39e0ae32 100644
--- a/synapse/events/builder.py
+++ b/synapse/events/builder.py
@@ -128,14 +128,12 @@ class EventBuilder:
             )
 
         format_version = self.room_version.event_format
+        # The types of auth/prev events changes between event versions.
+        prev_events: Union[List[str], List[Tuple[str, Dict[str, str]]]]
+        auth_events: Union[List[str], List[Tuple[str, Dict[str, str]]]]
         if format_version == EventFormatVersions.V1:
-            # The types of auth/prev events changes between event versions.
-            auth_events: Union[
-                List[str], List[Tuple[str, Dict[str, str]]]
-            ] = await self._store.add_event_hashes(auth_event_ids)
-            prev_events: Union[
-                List[str], List[Tuple[str, Dict[str, str]]]
-            ] = await self._store.add_event_hashes(prev_event_ids)
+            auth_events = await self._store.add_event_hashes(auth_event_ids)
+            prev_events = await self._store.add_event_hashes(prev_event_ids)
         else:
             auth_events = auth_event_ids
             prev_events = prev_event_ids