A sortable bug? DOM has a hidden LI after update.

A sortable bug? DOM has a hidden LI after update.


First, thanks for the great UI packages! I love it!
While playing around with sortables, i discovered that the trigger
'update' leaves a hidden element ( a copy of the one just dragged) in
the DOM.
A demo can be found here:
http://thedeepgreensea.com/sortable/test_sort.html
Is this normal behaviour or a bug?
I tested in FF 2.0.0.14 and IE 7
Thanks!
Elja