Calling showFullScreen() on a QQuickView is buggy on desktop android

When showing a QQuickView-based app in fullscreen on a desktop android, the QML thinks it's in fullscreen but the content is really truncated within a phone-sized android window.

Manually resizing the window also doesn't seem to resize the QML item.

To reproduce, run the OpenGLUnderQML example on a desktop android emulator, and simply remplace view.show(); with view.showFullScreen();

here is the screenshot of the issue: