bug#2772: 23.0.91; emacsclient loses keybindings after terminal suspend/resume under screen

[Eli Zaretskii]

> From: Noam Postavsky <npostavs@gmail.com>
> Date: Sun, 03 Jun 2018 20:14:13 -0400
> Cc: 2772@debbugs.gnu.org, Jakob Krainz <jakob@hawo.stw.uni-erlangen.de>
> 
> Robert Cochran <robert-emacs@cochranmail.com> writes:
> 
> > I was unable to reproduce this with
> >
> > GNU Screen 4.06.02
> > GNU Emacs 27.0.50 (build 1, x86_64-redhat-linux-gnu, X toolkit, Xaw3d 
> > scroll bars) of 2018-06-03
> >
> > I was able to suspend the emacsclient, and then 'fg' it again. Arrow
> > keys were behaving as expected.
> 
> I couldn't reproduce with Emacs 24.3 (oldest Emacs I have), and screen
> 4.05.00 either.
> 
> (I put the OP on cc, on the off chance they're still reachable after so
> long)

A termscript file with all the keyboard input starting from before the
suspension, from a system where the problem can be reproduced, could
give us some hints.  See open-termscript.