Draggable connected to nested sortabled - helper misplaced on exit

Please check this example http://jsfiddle.net/8hy92a9g/1/

1. Pick up the Thing (draggable)

2. Drag it in and out of the big red box (sortable) - works as expected

3. Now drag it in and out of the small blue box (nested sortable). You'll notice that:

a. When exiting the small box, the helper is flickers for a fraction of a second.

b. When existing the large box, the helper is misplaced and will remain so until dragging back into the large box.

This is how it looks with Chrome 41 https://www.youtube.com/watch?v=Vls2tTteu60

This is similar to closed ticket 10669 but different since here we deal with nested sortables.