eternnoir/pyTelegramBotAPI + (0) -

    Fix release 3.7.8u1 (update was inconsistent, sorry)
    Previous update was inconsistent, sorry.
    I find bug when I use your library without threading. If call bot.register_next_step_handler in function that register next_handler in next_step_handlers but in function _notify_next_handlers this delete and bot don`t have handler, but in threading mode function self.next_step_handlers.pop(chat_id, None) has time to eval self.next_step_handlers.pop(chat_id, None) and bug disappear. Sorry for my English
    Yeah, I'm really sorry for all this errors, maybe tired a little bit.