Wrong detection of binding loop

import QtQuick 2.2

Rectangle {
    width: 360; height: 360

    Flickable {
        id: rootDetailsRect

        // In Qt 5.3.1 says : Binding loop detected for property "x"
//        anchors {
//            top: parent.bottom
//            bottom: parent.bottom
//        }
//        width: parent.width

        // Works ok in Qt 5.3.1, 5.3.0, 5.2.0 
        anchors {
            top: parent.bottom
            bottom: parent.bottom
            left: parent.left
            right: parent.right
        }

        contentWidth: mainColumn.width
        contentHeight: mainColumn.height

        Column {
            id: mainColumn
            spacing: 4
            width: childrenRect.width
        }
    } // Flickable

    Rectangle {
        id: scrollbar

        anchors.bottom: rootDetailsRect.bottom
        x: rootDetailsRect.visibleArea.xPosition * rootDetailsRect.width
        height: 4
        width: rootDetailsRect.visibleArea.widthRatio * rootDetailsRect.width
        color: "lightgray"
    }
}