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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Can we make set_point_both less expensive?
Date: Fri, 20 Mar 2015 22:52:52 +0200
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Cc: rudalics@gmx.at, dancol@dancol.org, emacs-devel@gnu.org
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
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> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: martin rudalics <rudalics@gmx.at>, dancol@dancol.org, emacs-devel@gnu.org
> Date: Fri, 20 Mar 2015 13:57:57 -0400
> 
> > Redisplay never moves point, except when it was forced to keep a
> > specific window-start position.
> 
> This is the case under discussion.

That's not my understanding.