dbeab0ef87
If a container is not clip-to-allocation, then its get_paint_volume() needs to include the paint volumes of all of its children, since they (or their children) may paint outside the container's allocation. Also, if the superclass get_paint_volume() returns FALSE, then the subclass should return FALSE too. https://bugzilla.gnome.org/show_bug.cgi?id=655812