The test_user_logout_outgoing_message is undeterministic because
it speculate on the fact that the channel subscription was made
when we try to dispatch notifications. Sometimes it is not and
the websocket to channel map is empty resulting in a StopIteration
exception being raised. Let's wait for the subscribe to occur to
ensure the websocket will be registered before trying to dispatch
the message.
closesodoo/odoo#99204
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>
Matthieu Stockbauer
9c85261597