Comment # 4 on bug 110138 from grmat@sub.red

> I think this patch should fix your issue

Indeed it does, thanks! :)

I've seen it is already in for 5.1. Don't you think it should be backported for
5.0 as well? I'm not sure if the issue could damage the display but for what I
can tell, it's a serious bug and surely looks disturbing to users.