0 is already the correct value.
https://bugzilla.gnome.org/show_bug.cgi?id=694881
// flags only determine what to do if the allocated box is bigger
// than the actor's box.
let realDirection = getRtlSlideDirection(this._direction, child);
- let alignX = (realDirection == SlideDirection.LEFT) ? (availWidth - natWidth) : (natWidth - availWidth);
+ let alignX = (realDirection == SlideDirection.LEFT) ? (availWidth - natWidth) : 0;
let actorBox = new Clutter.ActorBox();
actorBox.x1 = alignX;