Overlay does not respect QQuickWidget::SizeRootObjectToView

import QtQuick 2.13
import QtQuick.Window 2.13
import QtQuick.Controls 2.10

Page {
    id: page
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    Button {
        anchors.centerIn: parent
        text: "Open dialog"
        onClicked: dialog.open()
    }

    Dialog {
        id: dialog
        parent: page
        modal: true
        closePolicy: Popup.CloseOnEscape | Popup.CloseOnPressOutside

        width: 200
        height: 100

        x: (parent.width - width) / 2
        y: (parent.height - height) / 2
    }
}

[Controls]
Style=Material

[Universal]
Theme=Dark
;Accent=Steel

[Material]
Theme=Dark
;Accent=BlueGrey
;Primary=BlueGray

m_quickWidget = new QQuickWidget(widget);
m_quickWidget->setAttribute(Qt::WA_AcceptTouchEvents);
m_quickWidget->setResizeMode(QQuickWidget::SizeRootObjectToView);