jquery/jquery-ui — pull request #672 by pwmckenna (2012-06-04 08:22:56+00:00)
Title: Draggable: modified the cloned element to remove itself when the original is removed

"Draggable: modified the cloned element to remove itself when the original is removed. Fixed #8380 - Draggable: clone gets stuck in non-recoverable state if original is deleted

http://bugs.jqueryui.com/ticket/8380
http://jsfiddle.net/pwmckenna/Xh8KB/6/