Tab focus navigation broken with QQuickWidget

in an application where QWidgets are mixed with QMl items with a QQuickWidget, pressing the Tab key will work as expected for the QWidgets, but then when the QQuickWidget gains focus, one would expect the focus will go down and keyboard focus will go in the qquickitems inside it by their own tab order.

however, pressing tab, the focus just passes to the next QWidget after the QQuickWidget