GtkRevealer animation does not work inside GtkBox with orthogonal orientation
Submitted by Karas
Created attachment 367461 Demonstration of bug
When placing a GtkRevaler inside a GtkBox, whether the animation works or not depends on the orientation of the GtkBox and the animation type of the GtkRevealer.
If animation is horizontal, it does not animate when box orientation is vertical and vice versa. It does however work if animation is horizontal and orientation horizontal too (and vice versa).
When "animation does not work", the revealer just immediately show/hide its child.
Attachment 367461, "Demonstration of bug":