Only the first Q_PROPERTY marked as REQUIRED is required in reality

If a class has a number of Q_PROPERTYs only the first REQUIRED property seems to be required for instantiating the object in Qml. So in a setup where there are 2 properties e.g.

  Q_PROPERTY(int index READ index WRITE setIndex NOTIFY indexChanged REQUIRED)
  Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged REQUIRED)

setting the property "index" in Qml seems to be enough for the object to be successfully instantiated.

    Demo {
        id: demo
        index: 1
        Component.onCompleted: {
            console.log("The property 'name' is required but it's value is:", demo.name)
        }
    }

If the order of the Q_PROPERTYs is swapped in C++ and the test app is rebuilt now there would be an error

QQmlApplicationEngine failed to create component
qrc:/main.qml:10:5: Required property name was not initialized

upon running the test app.

Steps to reproduce the problem:

1. run the attached example (it loads the qml without any warnings or errors)