Delete events from federation_inbound_events_staging table on purge (#12770)

changelog.d/12770.bugfix

+Delete events from the `federation_inbound_events_staging` table when a room is purged through the admin API.

synapse/storage/databases/main/purge_events.py

@@ -417,6 +417,7 @@ class PurgeEventsStore(StateGroupWorkerStore, CacheInvalidationWorkerStore):
             "room_account_data",
             "room_tags",
             "local_current_membership",
+            "federation_inbound_events_staging",
         ):
             logger.info("[purge] removing %s from %s", room_id, table)
             txn.execute("DELETE FROM %s WHERE room_id=?" % (table,), (room_id,))

tests/rest/admin/test_room.py

@@ -2489,4 +2489,5 @@ PURGE_TABLES = [
     "room_tags",
     # "state_groups",  # Current impl leaves orphaned state groups around.
     "state_groups_state",
+    "federation_inbound_events_staging",
 ]