bug#44284: 27.1; with some Unicode font, scrolling upward with the mouse wheel actually scrolls downward when the cursor needs repositioning

[Vincent Lefevre]

On 2020-11-01 17:55:48 +0200, Eli Zaretskii wrote:
> > Date: Sat, 31 Oct 2020 23:43:24 +0100
> > From: Vincent Lefevre <vincent@vinc17.net>
> > Cc: 44284@debbugs.gnu.org
> > 
> > window_scroll_pixel_based is not called at all, neither window_scroll
> > is.
> 
> Are you sure?  That's very strange; it does get invoked on my system.
> This happens because turning the mouse wheel invokes mwheel-scroll,
[...]

I meant, when I started to get unexpected values. Then yes, maybe
(I haven't got that far), which would explain why I can put later
the cursor on the last line.

Anyway, this is not the cause of the bug. See my following mail...

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)