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


From: Eli Zaretskii
Subject: bug#24580: 25.2.50; query-replace history doesn't work
Date: Sun, 02 Oct 2016 10:02:42 +0300

> Date: Sun, 2 Oct 2016 00:17:15 -0400
> From: Mark Oteiza <address@hidden>
> Cc: Marcin Borkowski <address@hidden>, address@hidden
> 
> > > - start emacs -Q
> > > - press `a' `C-b', `M-%', `a', `RET', `b', `RET', `!'
> > > - press `M-%', `M-p'
> > > 
> > > Emacs says "Beginning of history; no preceding item".
> > 
> > Mark, this regression was caused by the lexical-binding change in
> > replace.el.  Could you please take a look?
> 
> The problem lies (at least) in query-replace-read-from, where
> query-replace-from-to is let bound, and later read-from-minibuffer
> refers to the symbol 'query-replace-from-to.  At first sight, it looks
> like it could be fixed by putting some of the setup done by these
> bindings into the minibuffer setup hook.

Isn't there a less intrusive change to fix this?  A significant change
like the one you propose is more risky, but if there's no safer one, I
guess we should take it.

> 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?

Thanks.





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