import QtQuick 2.7
import QtQuick.Window 2.2

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Assigning data property problem")

    property QtObject myItemKiller: QtObject { //this would normally be some actually useful type with real properties
        objectName: "foobar"
    }

    MyItem {
        anchors.fill: parent
        //data: myItemKiller //uncomment this to reveal the issue
    }
}