Bug in Internet Explorer 8 when sorting list in a list

Bug in Internet Explorer 8 when sorting list in a list

Hey everyone!
I've created a site with a sortable list using jquery ui. The list,
however, doesn't only consist of one list but child lists, e.g.:
{{{<ul>
<li>
<ul>
<li></li> <li></li>
</ul>
</li> <li> </li>
</ul>}}}
When dragging a row in a sublist, the row of the parent list is being
dragged as well. This only occurs in Internet Explorer. A demo can be
found here: http://www.mygmc.de/eigene/jquerybug/test.html
Thanks for your help! ;-)
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