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This commit is contained in:
Erik Johnston 2017-05-17 10:03:09 +01:00
parent ad53fc3cf4
commit 85e8092cca
1 changed files with 5 additions and 0 deletions
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synapse/storage/roommember.py
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@ -420,7 +420,12 @@ class RoomMemberStore(SQLBaseStore):
for key, e_id in current_state_ids.iteritems()
if key[0] == EventTypes.Member
]
if context is not None:
# If we have a context with a delta from a previous state group,
# check if we also have the result from the previous group in cache.
# If we do then we can reuse that result and simply update it with
# any membership changes in `delta_ids`
if context.prev_group and context.delta_ids:
prev_res = self._get_joined_users_from_context.cache.get(
(room_id, context.prev_group), None