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Jeremy Daer
93718f7408
A push subscription belongs to the user, not a session, so a device
signed out by a password change kept getting notifications. Changing
the password now removes every subscription along with the sessions,
in the same transaction.
A browser still signed in keeps its own subscription in its service
worker, so the notifications controller posts it once per session: the
bell names the session by a digest of its id, never its token, and the
browser remembers the last one it posted for. That post never
unsubscribes the browser when the server refuses it.
A request that authenticated just before the change could put a
subscription back after it. The create action now checks the session
still exists and saves in one immediate transaction, after validating
the endpoint outside it.
From #371.
(cherry picked from commit 6cab924097)