Biginset branch has landed (sorry for the spam)

[Scott Kostyshak]

On Fri, Apr 05, 2024 at 04:17:10PM GMT, Jean-Marc Lasgouttes wrote:
> I merged the biginset branch (see #12297 for context) to master. This is the
> good part.
> 
> The bad part is that I decided first to rebase it over master, and that
> resulted in 100+ messages sent to lyx-devel :( We are investigating how to
> avoid that.
> 
> What now? Well, testing is welcome when you have time : does everything
> works the same, but faster for big document that were annoying?.

I came across an issue where the screen seems to stop updating. To reproduce:

1. Open the attached document.
2. Place the cursor at the end of the buffer.
3. Press <Left>, which places the cursor inside the math inset.
4. Press <Right>, which exits math.

Now, sometimes (not always), weird things happen. I attach a screenshot.

The easiest way for me to reproduce is if after (4) I switch desktops on
GNOME. When I switch back, to LyX, it looks very weird and the workarea
isn't refreshed. If I do <Left>, the cursor moves in the math inset but
still things look weird. If I do <Left> one more time, finally there is
a screen update and everything looks back to normal.

I can also reproduce if I switch windows after (4) instead of switching
desktops. When I switch back to LyX, there is no update.

Even if I don't leave LyX, sometimes I see strange things after (4), but
this is harder to reproduce.

Can anyone reproduce weirdness after (4)?

Scott
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