Doesn't work when in a transformed element

[rmtmckenzie]

I've tried using sortable-list within an element that has been transformed (to be honest, just rotateZ(0)). This causes the width & height of the elements when dragging to be wrong by the difference between the top of the window and the sortable list.

sortable-list:
 -------------
|      first element (should be at top left)
|     -----------
|     |               |