How to change a property binding during (after) an element creation in QML ?

LRDPRDX

Suppose I have a custom CheckBox:

//MyCheckBox.qml

CheckBox {
  required property QtObject proxy

  checked: proxy.value

  Binding {
    target:    proxy
    property:  "value"
    value:     checked
  }
}

So the checked status of the MyCheckBox bound to the value property of my object (proxy) and vise-versa, i.e. I have a two-way binding.

I am using my custom checkbox as follows:

//My window
Item {

  ...

  MyCheckBox {
    id:    ordinaryCheck
    proxy: ...
  }

  ...
}

Everything works as expected. But what if I need to invert the logic for some instance of MyCheckBox: when proxy.value is true the checkbox is unchecked, and when proxy.value is false the checkbox is checked ? But this, ofc, doesn't work as I have a binding loop here if I try to do this:

Item {

...

  MyCheckBox {
    id:    invertedCheck

    proxy:     ...
    checked:   !proxy.value

    Binding {
      target:    proxy.value
      property:  "value"
      value:     !checked
    }
}

The Qt bindings are also not an option:

//MyCheckBox.qml

CheckBox {
  required property QtObject proxy

  checked: proxy.value

  Component.onCompleted {
    property.value = Qt.binding(function() { return checked });
  }
}

I have the same binding loop error in this case.

So what is my option to reach the goal, how to alternate the binding at the moment of instantiation ?