new chopped/incorrect rendering issue affecting full screen mode

[natask]

The sidebar scrolling menu disappears in full screen mode under inversion. It shows what ever is behind it. It seems to target specific apps like firefox but not gnome-terminal. currently using GNOME Shell 3.32.2. issue seems to be in GNOME Shell 3.30.x as well.

Firefox 69 dev version Inverted windowed mode

Firefox 69 dev version Inverted Full screen mode. you can see that the sidebar scrolling menu is non-existent and shows what is in the background instead. issue exists on Firefox 69- as well.

same window uninverted

Gnome-shell Inverted. No sidebar scrolling menu rendering issue.

[vspinu]

Same issue here but for me it's the lower strip (about 1cm) of the window. It's just cropped and whatever window is underneath is visible. Looks like window dimensions computation goes wrong somewhere.

I see this with all kind of apps (Emacs, Okular).