bug#57433: Emacs no longer moves point into visible port of the buffer

[Eli Zaretskii]

> From: Paul Pogonyshev <pogonyshev@gmail.com>
> Date: Sat, 27 Aug 2022 18:12:49 +0200
> Cc: Gerd Möllmann <gerd.moellmann@gmail.com>, 
>       57433-done@debbugs.gnu.org
> 
> Actually, disregard that. It appears to be a Magit bug. If I switch the buffer
> to any other mode, everything behaves as expected.

Right.  I suspect that Magit puts something else there, not just the
invisible property.  What does describe-text-properties say at that
point?