mdi child windows on mac Changed-bubble is drawn raised.

A child window inside a mdi widget should look like the native mac os windows, where the changed button is shown sunken.

But Qt mdi child windows show the changed indicator on the first button as raised.

The easiest way to duplicate this is by creating a form in designer when designer is in mdi mode. Add any widget to the form to have the dot appear on the first button (unsaved changes). Compare that with the behavior of any native application.