
Resizing effects are more finicky as other effects, as the actual animation is delayed until we receive the ::size-changed signal. However that signal may never be emitted if the window is destroyed just after starting the size-change effect, in which case the effect is never completed, blocking mutter from destroying the corresponding window actor. Address this by tracking when a resize effect is pending, and complete the effect when appropriate. https://gitlab.gnome.org/GNOME/mutter/issues/655 https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/815