bug in the offset() for a div postion:absolute / display:none

bug in the offset() for a div postion:absolute / display:none


Hi,
I am switching from interface to jquery-ui and I am blocked for the
transfer effect.
After investigations, it appears that the offset from JQuery returns
(left:0,top:0) for a div in a absolute position and display: none. If
I change from display:none to visibility:hidden it works, but I cannot
apply the effect as it uses display:none/block to run.
I created a ticket with a test case attached.
http://dev.jquery.com/ticket/3037
Please could you help me?
Cheers,
Sylvain