
Now that we properly notify mutter about when a size-change animation has ended, it should never happen that a new size-change animation is started without the last one being cancelled (ie. 'kill-window-effects' being emitted). This means there should also never be an old animationInfo attached to a window actor, so warn in case we still find one when starting the animation. https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1251