For such code:

import QtQuick 2.15

Item {
    id: mainItem
    property alias childAntialiasing: child.antialiasing
    Item {
        id: child
        antialiasing: mainItem.childAntialiasing
    }
}

qmllint reports nothing. It would be nice if it warn about such cycles.
I found 3 places in my code base like this, created by series of small changes in code base,
that as result introduce such strange construction.