Subject: bug#25209: 25.1; can't delete *Shell Command Output*

From: Eli Zaretskii <[email-masked]>
Date: Mon, 19 Dec 2016 18:59:32 +0200

> From: Andreas Schwab <[email-masked]>
> Date: Mon, 19 Dec 2016 15:26:37 +0100
> Cc: [email-masked]
> 
> I think the problem is that vertical-motion (as called by
> display-message-or-buffer via count-screen-lines) is not properly
> protecting against quit when it temporarily modifies the window's
> buffer.

I think you are right.  Patches to fix that are welcome.

Thanks.