Cancel existing preview item animation during non-animated update.

Otherwise we end up in a bad folder icon state.

Bug: 191227370
Test: Drag icon out of folder bounds,
      Suddenly drop it so its forced to go back to the folder
      Close folder before the animation finishes

Change-Id: Ib751a8209d66c5e9772731fdc1d7f365ae47531a
1 file changed