bug#21368: 25.0.50; Core navigation commands fail in a multi-line intangible text with fringe

[Eli Zaretskii]

> From: Vitalie Spinu <spinuvit@gmail.com>
> Cc: 21368@debbugs.gnu.org
> Date: Sat, 29 Aug 2015 21:08:10 +0200
> 
> > What is a relatively recent change?  The C-b part or the M-x part?
> 
> The M-x part. Aka, invoking `backward-char` from programs.

I wonder what change that could be.

> > text around.  (Btw, yet another solution is to disable line-move-visual in
> > these cases -- would that be a good idea in those real-life examples?)
> 
> So the core of the issue is `line-move-visual`?

Yes.  Without it, previous-line just goes to the previous physical
line.  With it, Emacs needs to decide where to put point, and that's
not easy when invisible text is involved, because we can only put
point on some buffer position.