[REG 6.5.3 - 6.6.1] QML warning "Final member modelData is overridden in class QQmlDMAbstractItemModelData. The override won't be used."

Final member modelData is overridden in class QQmlDMAbstractItemModelData. The override won't be used.

import QtQuick
import ModelWarning

Window {
    width: 640
    height: 480
    visible: true

    ListView {
        anchors.fill: parent
        model: TestModel {}
        delegate: Rectangle {
            required property string modelData

            width: ListView.view.width
            height: 30
            Text {
                anchors.centerIn: parent
                text: modelData
            }
        }
    }
}

QHash<int, QByteArray> TestModel::roleNames() const
{
    return {
        { SomeRole1, "modelData" },
        { SomeRole2, "someRole" }
    };
}