REG->6: Android: Fullscreen does not cover the navigation bar area

MouseArea { 
    property bool fullScreen: false
 
    anchors.fill: parent
 
    z: 1000
     
    onClicked: { 
        fullScreen = !(fullScreen);
 
        if (fullScreen) window.showFullScreen(); else window.showNormal(); 
    }
 
    Rectangle { 
        anchors.fill: parent
 
        opacity: 0.5
        
        color: "blue" 
    }
}