Invalidate caches when an event with a relation is redacted. (#12121)

The caches for the target of the relation must be cleared
so that the bundled aggregations are re-calculated after
the redaction is processed.

1 files changed, 2 insertions, 0 deletions

diff --git a/synapse/storage/databases/main/cache.py b/synapse/storage/databases/main/cache.py

index c428dd5596..abd54c7dc7 100644
--- a/synapse/storage/databases/main/cache.py
+++ b/synapse/storage/databases/main/cache.py
@@ -200,6 +200,8 @@ class CacheInvalidationWorkerStore(SQLBaseStore):
             self.get_relations_for_event.invalidate((relates_to,))
             self.get_aggregation_groups_for_event.invalidate((relates_to,))
             self.get_applicable_edit.invalidate((relates_to,))
+            self.get_thread_summary.invalidate((relates_to,))
+            self.get_thread_participated.invalidate((relates_to,))
 
     async def invalidate_cache_and_stream(self, cache_name: str, keys: Tuple[Any, ...]):
         """Invalidates the cache and adds it to the cache stream so slaves