IMHO, it's a horrible hack that is just broken. It's obscure and we need to rewrite it because it has a bad structure. ^X^Cquit^[ESC][ESC]^C
ESC + :q!
ESC to enter normal mode (if you're in a different mode like insert) : (colon) to enter commands q to quit ! (or a) to use the quit command withiut keeping any changes