ededba0c6d
There is a race if a channel is invalidated during its preparation: the 'invalidated' signal is already emitted so the Shell will never notice. We fix this by simply checking if the channel is already invalidated when receiving it from telepathy-glib. In the approving case, we reject the full ChannelDispatchOperation as we only support approving one channel at the time. https://bugzilla.gnome.org/show_bug.cgi?id=677457