Changing orientation shrinks VideoOutput on Android when QQuickWidget is used

We have a standalone QQuickWidget and we show QML VideoOutput in it. Now when the screen is rotated for the first time the VideoOutput shrinks to cover only about 1/6 of the QQuickWidget and rotating again doesn't change it back to normal.

We have a rectangle as a background and it shrinks as well. If we remove the VideoOutput item, the rectangle maintains its size correctly. Also if we add the QQuickWidget to QMainWindow, the problem is not reproducible.

Tested on Android - we haven't verified with other platforms. Please find attached an example to reproduce (just run and rotate the device).