Immediate 2nd quickscrub should not cancel if same state

Trigging quickscrub immediately after a previous quickscrub would cause
the controller to cancel even if the state change was from overview to
overview, then controller will not do auto-advancing because it thinks
quickscrub has been cancelled. If the state changes but both are
overview then do not cancel and quickscrub can do auto-advancing.

Change-Id: I309937572ad23eea14662501f41c13cd79dd10ab
Fixes: 110006796
Test: quickscrub, then let go and soon after quickscrub again