QTDockWidget with RanorexSpy causes an Assert to be hit.

In QAccessibleTitleBar::parent() you are creating a new QDockWidgetAccessible. This causes an assert to be hit if you use any spy program with a dockwidget I was able to repro this with your own examples that use QDockWidget.

The fix seems to be to change the code to the following:
QAccessibleInterface *QAccessibleTitleBar::parent() const
{
return QAccessible::queryAccessibleInterface(dockWidget());
}