Widget: Destroy only when element is the actual target #736
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If ever a 'remove' event was not triggered on the actual widget but on a child and is just bubbling up, then nothing should be done.
Use case: I use a 'remove' event (with bubbling) in my app and without this patch it interferes if the element I trigger it on is contained in a jQuery-ui widget.
http://stackoverflow.com/questions/12584732/how-come-sortable-area-freezes-if-a-remove-event-is-triggered