onFocusChanged is not emited when the item is inside a FocusScope

import Qt 4.7

Rectangle {
	id: rect
	width: 100
	height: 100
	color: "red"

	states: State {
		name: "highlight";
		when: rect.focus 
		PropertyChanges { target: rect; color: "yellow"}
	}

	MouseArea {
		anchors.fill: parent
		onClicked: {
			rect.focus = true
		}
	}
}

import Qt 4.7

Rectangle {
	width: 300
	height: 300

	FocusScope {     // remove the FocusScope and it works
		focus: true
		MyComponent {y: 0}
		MyComponent {y: 130}
	}
}