Window disappears when exiting fullscreen mode with WindowStaysOnTopHint set

import QtQuick 2.4
import QtQuick.Controls 1.3
import QtQuick.Window 2.2
import QtQuick.Dialogs 1.2

ApplicationWindow {
	title: qsTr("Hello World")
	width: 640
	height: 480
	visible: true

	ApplicationWindow {
		id: secondWindow
		title: qsTr("Second Window")
		width: 200
		height: 200
		Component.onCompleted: {
			flags = flags | Qt.WindowStaysOnTopHint
		}
	}

	Button {
		anchors.centerIn: parent
		text: "Show second window"
		onClicked: secondWindow.show()
	}
}