This bug was fixed in the package qt4-x11 - 4:4.8.1-0ubuntu4.1
--------------- qt4-x11 (4:4.8.1-0ubuntu4.1) precise-proposed; urgency=low
* Add kubuntu_33_shaped_drag.diff fixes LP: #987855 "problem in Qt dragging when all of the window target has been shaped out for input" -- Jonathan Riddell <email address hidden> Tue, 24 Apr 2012 16:44:41 +0100
This bug was fixed in the package qt4-x11 - 4:4.8.1-0ubuntu4.1
--------------- 1-0ubuntu4. 1) precise-proposed; urgency=low
qt4-x11 (4:4.8.
* Add kubuntu_ 33_shaped_ drag.diff fixes LP: #987855
"problem in Qt dragging when all of the window target has been
shaped out for input"
-- Jonathan Riddell <email address hidden> Tue, 24 Apr 2012 16:44:41 +0100