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Fix bug in persist events when dealing with non member types. (#7548) 

`_is_server_still_joined` will throw if it is given state updates with non-user ID state keys with local user leaves. This is actually rarely a problem since local leaves almost always get persisted by themselves.

(I discovered this on a branch that was otherwise broken, so I haven't seen this in the wild)
pull/7553/head
Erik Johnston 2020-05-21 13:20:10 +01:00 committed by GitHub
parent 5db2a59a86
commit f6f92845f8
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2 changed files with 3 additions and 2 deletions
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1
changelog.d/7548.bugfix Normal file
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@ -0,0 +1 @@
Fix bug where a local user leaving a room could fail under rare circumstances.

4
synapse/storage/persist_events.py
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@ -740,8 +740,8 @@ class EventsPersistenceStorage(object):
# whose state has changed as we've already their new state above.
users_to_ignore = [
state_key
for _, state_key in itertools.chain(delta.to_insert, delta.to_delete)
if self.is_mine_id(state_key)
for typ, state_key in itertools.chain(delta.to_insert, delta.to_delete)
if typ == EventTypes.Member and self.is_mine_id(state_key)
]
if await self.main_store.is_local_host_in_room_ignoring_users(