Parent and anchor issues with loaded components

import Qt 4.7

Rectangle {
    width:  800
    height: 460

    Loader {
        objectName: "the loader"
        anchors.fill: parent
        sourceComponent: blueRect
    }

    Component {
        id: blueRect
        Rectangle {
            objectName: "blue rectangle"
            width: 100; height:  100    // Bug: Rect fills the loader
            anchors.centerIn: parent
            color: "blue"
            Component.onCompleted: print("Parent: " + parent.objectName)   // Bug: "parent" is null
            Timer {
                running: true
                interval: 1000
//                onTriggered: { print(parent); }                 // Bug: Results in "null" printed
//                onTriggered: { print("Parent: " + parent); }  // Works fine
                onTriggered: { print("Parent of blue rect: " + parent.parent.objectName); } // Now blue rect has a parent
            }
        }
    }
}