Code review comment for lp:~feng-kylin/unity8/fix-lp1413791

I think maybe i'm not explaining myself correctly, this needs to be fixed:
 * Make sure you have at least two scopes
 * Be on the second scope
 * Do a long left swipe that shows the launhcher
 * Release the finger
 * See how the scope has changed to the first scope

It should stay in the second scope like it does if when not using this branch.