Add `allow_departed_users` param to `check_in_room_or_world_readable`

... and set it everywhere it's called.

while we're here, rename it for consistency with `check_user_in_room` (and to
help check that I haven't missed any instances)

1 files changed, 3 insertions, 1 deletions

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

index b7c6a921d9..b116500c7d 100644
--- a/synapse/handlers/initial_sync.py
+++ b/synapse/handlers/initial_sync.py
@@ -277,7 +277,9 @@ class InitialSyncHandler(BaseHandler):
         (
             membership,
             member_event_id,
-        ) = await self.auth.check_user_in_room_or_world_readable(room_id, user_id)
+        ) = await self.auth.check_user_in_room_or_world_readable(
+            room_id, user_id, allow_departed_users=True,
+        )
         is_peeking = member_event_id is None
 
         if membership == Membership.JOIN: