Mac: QStyleOptionComboBox draws on different position when widget is not in focus

QStyleOptionComboBox::drawComplexControl(...) is used to draw, It draws the combobox at correct position but moment if widget is out of the focus very strangely it re draw it different position (top left) in widget. If this widget is again in focus it redraws it at correct position.

To reproduce run the attached example and then bring some other application on the right side of this example window.