MouseArea inside SplitView item takes mouse events away from Splitview handle

import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.13

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

    SplitView {
        id: splitView
        anchors.fill: parent
        handle: Rectangle {
            id: handle
            implicitWidth: 20
            color: "red"
        }

        Page {
            id: firstPage
            Button {
                id: button
                implicitWidth: 100
                implicitHeight: 50
                text: "button"
            }
        }

        Page {
            id: secondPage
        }
    }
}