When PropertyChanges is in a Loader, it cannot rebind a property outside the Loader without using `target`

pragma ComponentBehavior: Bound

import QtQuick
import QtQuick.Controls

Window {
    id: root
    width: 640
    height: 480
    visible: true

    title: "Default window title"

    Loader {
        id: desktopMainContent
        anchors.centerIn: parent

        sourceComponent: Item {
            Switch {
                id: mySwitch
                anchors {
                    verticalCenter: parent.verticalCenter
                    right: parent.horizontalCenter
                }
            }
            Label {
                id: label
                anchors {
                    verticalCenter: parent.verticalCenter
                    left: parent.horizontalCenter
                }
                text: "Default label text"
            }

            states: State {
                name: "inCustomState"
                when: mySwitch.checked
                changes: [
                    PropertyChanges {
                        //! [0]
                        root.title: "In state"
                        //! [0]

                        //! [1]
                        // target: root
                        // title: "In state"
                        //! [1]
                    },
                    PropertyChanges {
                        label.text: root.title
                    }
                ]
            }
        }
    }
}