Give a warning if the parent property of a QObject is accessed in QML

I exported a data structure to QML by creating a QObject with properties and then registering it using qmlRegisterType<..>(..). Then I tried to set some properties using the parent object:

MyPane { // Custom Pane, property is set where the component is used.
  property int entityId
  MyEntity { // Exported QObject
    // This does not work! I get an undef is assigned to int warning, but
    // that's it.
    entityId: parent.entityId
  }
}

I solved the issue by giving the parent an id and then refer through this in the child QObject. Now of course this is not a defect in QML but very confusing for QML devs (and I wasted some time figuring this out). I propose two things:

• At least give a warning if the parent property is accessed from a non- QQuickItem or do not compile at all.
• More convenient: Make parent work somehow all the time in QML. I do not see a use case where the parent property should not refer to the parent.