docs: state that no session disconnected event before closed #48
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Though there is code path to deliver
Disconnected
beforeClosed
, butit is unreachable and several tests have assert immediate
Closed
afterclients dropped, e.g.
test_state_watcher
,test_client_drop
andtest_client_detach
.I favor immediate
Closed
now since it states the truth and avoid falsereactions against
Disconnected
. Whoever want aDisconnected
could doit themselves.