Fixed 'notifyAboutUpdateDialog' trying to send message to the dialog instance that wasn't joined.
Fixed 'notifyAboutUpdateDialog' trying to send message to the dialog instance that wasn't joined.

QuickBlox/q-municate-services-ios,Rusik/QMServices,Rusik/QMServices,QuickBlox/q-municate-services-ios,Rusik/QMServices