bug#44418: 28.0.50; Spliced variable not matched as symbol in isearch

[Eli Zaretskii]

> From: Mattias Engdegård <mattias.engdegard@gmail.com>
> Date: Thu, 22 Jun 2023 10:50:18 +0200
> Cc: larsi@gnus.org,
>  contovob@tcd.ie,
>  44418@debbugs.gnu.org,
>  monnier@iro.umontreal.ca
> 
> > If this changes user-facing behavior or behavior of public functions,
> > I think we must call this out in NEWS, under "incompatible changes".
> 
> This is just a bug fix, not a change to documented or otherwise intended 
> behaviour.

Whether it was intended is not necessarily relevant.  It could be
known long-standing behavior that became a de-facto standard.  Which
is why I think we should call it out.

If you are unwilling to mention this in NEWS, please describe the
change and I will add to NEWS what I think needs to be added.

TIA