Apply forgetting properly to historical events

1 files changed, 9 insertions, 1 deletions

diff --git a/synapse/handlers/_base.py b/synapse/handlers/_base.py

index 6519f183df..95bb06395a 100644
--- a/synapse/handlers/_base.py
+++ b/synapse/handlers/_base.py
@@ -92,7 +92,15 @@ class BaseHandler(object):
 
             membership_event = state.get((EventTypes.Member, user_id), None)
             if membership_event:
-                membership = membership_event.membership
+                was_forgotten_at_event = yield self.store.was_forgotten_at(
+                    membership_event.user_id,
+                    membership_event.room_id,
+                    membership_event.event_id
+                )
+                if was_forgotten_at_event:
+                    membership = None
+                else:
+                    membership = membership_event.membership
             else:
                 membership = None