bug#31718: 26.1; Strange behavior of `cond'

[Eli Zaretskii]

> Cc: robert-emacs@cochranmail.com, 31718@debbugs.gnu.org, ikumi@ikumi.que.jp,
>  vibhavp@gmail.com, npostavs@gmail.com, schwab@suse.de, jaygkamat@gmail.com,
>  pierre.techoueyres@free.fr, hector.e.r@gmail.com, contovob@tcd.ie
> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Sat, 16 Jun 2018 08:28:57 -0700
> 
> Eli Zaretskii wrote:
> >> Given the practical consequences of this bug I expect the bug fix
> >> should be backported into the emacs-26 branch too.
> > Could you explain why?
> 
> We've had three independent reports of the bug (Bug#28806, Bug#31718, 
> Bug#31734), I expect because org-mode triggers the Emacs bug. Bug#28806#5 
> says 
> it occurs with Emacs 26 but not Emacs 25. Bug#31718#5 says it occurs with 
> Emacs 
> 26 but not Emacs 25.3. So the bug is a regression, and it's biting real users.

If it's a regression, then let's backport, indeed.

Thanks.