Ticket #4088 - Unable to remove() ui.draggable (sortable item) immediately after the drop callback.

TEST: Drag 'Special Item' to the div labelled 'Drop here'

TEST: Drag a 'Normal Item' to the div labelled 'Drop here'

Special Item
Normal Item 1
Normal Item 2
Normal Item 3

Trash Drop here

ASSERT: The dropped item is removed from the original list and the following text does not appear: "I was dropped and removed, but still here I am!"