QWidgetAction and synchronous QMenu = real problem

There seems to be a problem with "compability" between those two classes:

There are several post on the net about people being unable to exit the QMenu after being done using their custom widget. Calling QAction::triggered(), as suggested in the docs, doesn't seem to work.

Some notable references:
Ref: http://lists.trolltech.com/pipermail/qt-interest/2010-March/020001.html
Ref: http://www.qtcentre.org/threads/20450-How-to-make-QMenu.exec()-return-a-QWidgetAction

Some are therefore using hacks to do it, like passing QMenu to their custom implementation of QWidgetAction, and manipulating it from there, or using events, like forwarding mouseReleaseEvent(), hideEvent() or "Esc" keyevents...

Here is a notable hackish solution: http://lists.trolltech.com/qt-interest/2007-06/thread00463-0.html

I don't know whether this is a bug or not, but considering the fact that one only can find problems of this kind on the internet, and no decent solution, suggest this to be a problem.

Regards,
Davor