Popup window containing a Listbox closes as soon as you try to drag a listitem. No request is made to close the popup, in fact the listbox is the wanted drop target.
This worked in 2.4.1, I seem to recall it worked in 3.0.0 - but it did not work in 3.0.2.
Dave
Sample
Logged In: YES
user_id=1684431
Originator: NO
Fixed since 2/13.