scale: 0 items handle the mouse

The following example can be used to demonstrate:

import QtQuick 2.14

Item {
    width: 400
    height: 400

    Rectangle {
        width: 200
        height: 200
        color: "red"
        scale: 0 // any scale other than 0 works as expected

        TapHandler { onTapped: console.log("tapped") }
    }
}
 

With any scale value other than 0, "tapped" is only output when clicking within the visual red Rectangle. With a scale value of 0, "tapped" is output as though the item were of scale 1.

This appears to be due to the interaction of https://code.woboq.org/qt5/qtdeclarative/src/quick/items/qquickwindow.cpp.html#2456 and contains(). (with a scale of 0, mapFromScene returns the original value, which contains() happily accepts.)