I've gotten stuck in plenty of convos. Usually they're reliant on other bugs/exploits I use, so I don't report them individually. You might want to be more specific if the one you encountered took place during normal play. Anyway, for now, if you are stuck in a convo, want to get out of it, but really don't want to reload a save, you can switch characters, kill the character stuck in the convo, and raise them again.