bug#68509: 30.0.50; pcase-dolist matches backquote pattern incorrectly

[Eli Zaretskii]

> Cc: 68509@debbugs.gnu.org
> From: Ihor Radchenko <yantar92@posteo.net>
> Date: Mon, 19 Feb 2024 10:05:33 +0000
> 
> Ihor Radchenko <yantar92@posteo.net> writes:
> 
> > Not sure about pcase-let, but pcase-dolist specifically may be
> > simplified not to use pcase-let:
> >
> > (if (pcase--trivial-upat-p (car spec))
> >       `(dolist ,spec ,@body)
> >     (let ((tmpvar (gensym "x")))
> >       `(dolist (,tmpvar ,@(cdr spec))
> >          (pcase ,tmpvar (,(car spec) ,@body)))))
> 
> See the attached patch.
> If the patch is acceptable, we also need to update the manual.

Thanks.  Adding Stefan to the discussion.