panic in mtproto_utils.go about mtproto

[quenbyako]

@LazarenkoA i got this panic too, it's happen cause telegram send BadMsgNotification.

I don't know how to process this message. TDlib say that we need just delete current session completely and create new one + authorize via phone code, which is too dumb way to process it.

If you found any solutions, please let me know, cause it's really important and urgent bug.

[LazarenkoA]

only with sleep (add it before every call to the mtproto method)

[quenbyako]

@LazarenkoA but this is pretty stupid solution)))

I think, that MTProto need sync.Mutex for requests. Looks like we have race for seqno value