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 18:32:15 +0200
> Cc: Gerd Möllmann <gerd.moellmann@gmail.com>, 
>       57433@debbugs.gnu.org
> 
> > Now, I put the point at the beginning of the third line ([^] is the point):
> 
> Text content at position 32867:
> 
> There is an overlay here:
>  From 32867 to 32901
>   evaporate            t
>   font-lock-face       magit-diff-file-heading-highlight
> 
> There are text properties here:
>   font-lock-face       magit-diff-file-heading
>   keymap               [Show]
>   magit-section        [Show]

Maybe the 'keymap' part?  Could it be that C-b has a binding in that
keymap?