bug#63757: 29.0.91 order of package paths changed: random old versions of packages in load-path

[Eli Zaretskii]

> From: Philip Kaludercic <philipk@posteo.net>
> Cc: Eli Zaretskii <eliz@gnu.org>,  artscan@list.ru,  63757@debbugs.gnu.org
> Date: Sun, 04 Jun 2023 16:15:10 +0000
> 
> Stefan Monnier <monnier@iro.umontreal.ca> writes:
> 
> > Actually, here's the patch that I'd suggest.
> > It reverts the code to its Jan 2021 state, which, in my book, makes it
> > safe enough.
> >
> > The current sort predicate is quite severely broken, so "no sort" can't
> > be worse (especially since the list is supposed to be sorted already).
> > Also it re-instates the "prefer a builtin package" which was lost along
> > the way.
> 
> Together with the sorting patch from above, it seems this would also
> work for VC packages, since "foo" is always listed before "foo-...".

So what exactly was the change installed back in Aug 2022 supposed to
improve?