bug#32502: 27.0.50; Tramp; C-g during asynchronous remote find-file kills Emacs

[Eli Zaretskii]

> From: Gemini Lasswell <gazally@runbox.com>
> Cc: 32502@debbugs.gnu.org,  michael.albinus@gmx.de
> Date: Fri, 31 Aug 2018 08:07:55 -0700
> 
> > Because the echo area could be showing something important from the
> > main (or some other) thread, e.g. if the user typed "C-x C-f", but
> > didn't yet finish responding to the request for the file name.
> > Displaying something from another thread will wipe out that
> > interaction's text.
> 
> In the feature/tramp-thread-safe branch, main thread prompts already get
> wiped out by messages from other threads, even in the absence of errors.

Which is why we are having the discussion on emacs-devel trying to
figure out how to avoid that.  Displaying an error message is a
simpler problem, because it doesn't require any response.