No signal emitted for menu closed or menu dismissal

import QtQuick 2.0
import QtQuick.Controls 1.1


Rectangle {
    width: 600
    height: 600

    Rectangle {
        id: clickableRect
        focus: true

        color: "red"
        width: 300
        height: 300
        anchors.centerIn: parent

        ExclusiveGroup {
            id: myGroup
        }

        Menu {
            id: myMenu

            onVisibleChanged: {
                console.log("myMenu : onVisibleChanged");
            }
            onEnabledChanged: {
                console.log("myMenu : onEnabledChanged");
            }

            //            on__menuClosed: { // <---- This appears to be a private signal but Qt Creator still allows me to auto complete this signal handler. However, runtime doesn't allow execution.
            // It says "Cannot assign to non-existent property "on__menuClosed"
            //                console.log("myMenu : on__menuClosed");
            //            }

            MenuItem {
                text: "item 0"
                checkable: true
                exclusiveGroup: myGroup

                onTriggered: {
                    console.log(" item0 - onTriggered - This selection works of course - but dismissal doesn't");
                }
            } // MenuItem

            MenuItem {
                text: "item 1"
                checkable: true
                exclusiveGroup: myGroup
            } // MenuItem


        } // Menu

        onFocusChanged: {
            console.log("clickableRect : onFocusChanged");
        }
        onActiveFocusChanged: {
            console.log("clickableRect : onActiveFocusChanged");
        }
    }


    MouseArea {
        anchors.fill: parent
        onClicked: {
            //myFocusScope.focus = false;
            clickableRect.focus = false;
            myMenu.popup();
        }
        onFocusChanged: {
            console.log("MouseArea : onFocusChanged");
        }
        onActiveFocusChanged: {
            console.log("MouseArea : onActiveFocusChanged");
        }
        onEntered: {
            console.log("MouseArea : onEntered");

        }
        onExited: {
            console.log("MouseArea : onEntered");
        }

    }


    onFocusChanged: {
        console.log("root Rectangle : onFocusChanged");
    }
    onActiveFocusChanged: {
        console.log("root Rectangle : onActiveFocussChanged");
    }
}