GNU bug report logs - #57433
Emacs no longer moves point into visible port of the buffer

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Paul Pogonyshev <pogonyshev <at> gmail.com>
Cc: gerd.moellmann <at> gmail.com, 57433 <at> debbugs.gnu.org
Subject: bug#57433: Emacs no longer moves point into visible port of the buffer
Date: Sat, 27 Aug 2022 18:13:04 +0300

> From: Paul Pogonyshev <pogonyshev <at> gmail.com>
> Date: Sat, 27 Aug 2022 16:07:49 +0200
> Cc: Gerd Möllmann <gerd.moellmann <at> gmail.com>, 
> 	57433 <at> debbugs.gnu.org
> 
> > Paul, please see that your original problem is now solved.
> 
> No, don't see any change in behavior.

Then I guess what you see is a separate and different problem.

> > (Btw, I think it's a subtle bug in Magit that it assumes cursor motion
> > will never end up on invisible text in such buffers.)
> 
> I don't think it is a bug. It is explicitly promised in Elisp manual as I see:
> 
> > 22.6 Adjusting Point After Commands
> > ===================================
> > 
> > Emacs cannot display the cursor when point is in the middle of a
> > sequence of text that has the ‘display’ or ‘composition’ property, or is
> > invisible.  Therefore, after a command finishes and returns to the
> > command loop, if point is within such a sequence, the command loop
> > normally moves point to the edge of the sequence, making this sequence
> > effectively intangible.

I think you are reading too much into what that text says.  It says
that point moves to the edge of such a sequence, and that is what
happens here.  No more, no less.

> That's why, btw, I couldn't create a testcase: I don't know how to emulate
> command loop.

Exactly.

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