
Since commit 007d30573
we use an actor effect to apply the radial effect and
we pass the effect to the tweener in order to animate it.
However, we always still remove the previously added tween from the actor,
instead that from the actual target.
So, depending the radial effect state, remove the tweens from the proper target
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/653