I'm using mutt 1.5.21 on OS X 10.9 in iTerm2, with emacs 24.2.1 set as my editor (with the -nw option, so emacs runs in the same window as mutt). I find when I edit a message or reply, either emacs or mutt is not restoring the terminal state properly, so the screen does not display correctly. I see partial lines that are not erased or repainted, reverse video areas that should not be, etc.
I basically have to quit and restart mutt to get things right again. Has anyone else experienced this? If so, have you found a solution? Thanks! -pd