bug#24580: 25.2.50; query-replace history doesn't work

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sun, 2 Oct 2016 12:51:28 -0400
> From: Mark Oteiza <mvoteiza@udel.edu>
> Cc: mbork@mbork.pl, 24580@debbugs.gnu.org
> 
> > > As for the other problem Marcin mentioned, that seems to be due to the
> > > custom-reevaluate-setting call in the same function.
> > 
> > I'm not sure I understand: what's wrong with
> > custom-reevaluate-setting in this case?
> 
> >From -Q:
> 
> 1. (setq-default query-replace-from-to-separator " => ")
> 2. Do an M-% (Like Marcin's in original recipe) once to get some default in the prompt
> 3. M-%
> 
> I would expect to see (default a => b) in the prompt, but
> custom-reevaluate-setting apparently ignores settings done outside of
> customize.  The first step instead needs to be
> 
>   (custom-set-variables '(query-replace-from-to-separator " => "))
> 
> or something with the default for query-replace-from-to-separator should
> be changed.

OK, but is this a new problem related to turning on lexical-binding?
If so, can you tell why it worked before?

Thanks.