qmllint dislikes alias on required properties

Given these two files:

 InfoWidget.qml
        PartRenderer {
            renderController: RenderController { }
        }


PartRenderer.qml:
Item {
    required property var renderController
    property alias rc: root.renderController
}

qmllint complains about the alias being required

Warning: InfoWidget.qml:110:9: Component is missing required property rc from PartRenderer
        PartRenderer {
        ^^^^^^^^^^^^

And yes, this is a bit of an odd setup, but I had to repeat "renderController" so many times in PartRenderer.qml that an abbreviation was in order... but not at the expense of a nice interface to the outside .

Replacing property alias rc with property var rc works just as well without warnings, but I guess it's a bit more overhead on the engine side.