Non-modal popups shouldn't affect focus

import QtQuick 2.7
import QtQuick.Window 2.2
import QtQuick.Controls 2.0

ApplicationWindow {
    width: 600
    height: 300
    visible: true

    onActiveFocusItemChanged: print(activeFocusItem)

    Button {
        text: "Button"
        hoverEnabled: true
        onClicked: menu.open()
        focusPolicy: Qt.TabFocus
        onHoveredChanged: print("hovered", hovered)

        ToolTip.text: "ToolTip"
        ToolTip.visible: hovered
    }

    Menu {
        id: menu
        y: parent.height / 2

        MenuItem {
            text: "Item 1"
        }
        MenuItem {
            text: "Item 2"
        }
        MenuItem {
            text: "Item 3"
        }
    }
}