ADS crashes on docking to the bottom dock area

I took a widget (both output Pane and Connection View had similar behaviour), placed it into very bottom dock area (success), then tried to place the same widget into the same bottom dock area again and it crashed the application.

Crash is in > AdvancedDockingSystemd4.dll!ADS::DockContainerWidgetPrivate::moveToNewSection(QWidget * widget, ADS::DockAreaWidget * targetArea, ADS::DockWidgetArea area) Line 567

targetAreaSplitter is NULL
targetArea is NOT a null value
area is BottomDockWidgetArea (8)

There is a call for internal::findParent, which can return 0, but never checked for it.