bug#53220: 27.2; scroll-up moves point +1 if text has display property

[Lars Ingebrigtsen]

awrhygty@outlook.com writes:

> Evaluate the form below and type 'C-v', the current point moves next to
> the beginning of line.
> Similarly, if the current point is at the window-start and type 'M-v',
> the buffer scrolls down and the point moves next to the original position.
>
> (let ((buf (generate-new-buffer "tmp"))
>       (line (propertize "A" 'display "B")))
>   (switch-to-buffer buf)
>   (dotimes (i 100)
>     (insert line ?\n))
>   (goto-char (point-min)))

I can reproduce this behaviour in Emacs 29, too.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no