[REG 5.4.0->5.5.0] RowLayout changes order of its elements when inside asynchronous Loader

import QtQuick 2.4
import QtQuick.Window 2.2
import QtQuick.Layouts 1.1

Window {
    visible: true
    width: 100
    height: 50

    Loader {
        asynchronous: true
        anchors.fill: parent
        sourceComponent: RowLayout {
            anchors.fill: parent
            Repeater {
                model: 4
                delegate: Text {
                    text: index
                    Layout.preferredWidth: 5
                    Layout.fillHeight: true
                }
            }
        }
    }
}