Expand on docstring comment about return value

pull/3595/head
Erik Johnston 2018-07-24 15:12:50 +01:00
parent 8f65ab98d2
commit 709c309b0e
1 changed files with 5 additions and 0 deletions

View File

@ -557,6 +557,11 @@ class EventsStore(EventsWorkerStore):
Returns a tuple of two state maps, the first being the full new current
state and the second being the delta to the existing current state.
If both are None then there has been no change.
If there has been a change then we only return the delta if its
already been calculated. Conversely if we do know the delta then
the new current state is only returned if we've already calculated
it.
"""
if not new_latest_event_ids: