drawfill broken in master branch
drawfill shows the checkerboard (fallback) image instead of a flat color.
E.g. when things are highlighted in the menu https://sheoth.eu/f/xonotic20190920154802-00.jpg
From this IRC log, it looks like at some point this issue was fixed and then reintroduced:
<terencehill> tested on revision 12426, Xonotic crashes loading menu on latest revision (12434) <terencehill> I applied 12434 on top of 12426, it reintroduced the bug showing the fallback image when drawfill is called