-RM-280-MR-Deadlock when new CustomWidget gets created in Multi-Threaded-Views-mode
Loading a module which uses a CustomWidget sometimes results in a deadlock. This deadlock occures in the opening-process of the CustomWidget.
The WQt4Gui, responsible for opening the widget, creates the widget and then waits on a gui-event, which should get fired when the widget is ready. But the event-polling-thread gets stuck while handling this event.
(from redmine: created on 2013-04-15, closed on 2014-03-04)