How to inspect binding on property?

[fcarney]

I am using RadioButton items and I am confused as to why my bindings to the checked property are not being broken when I click the buttons. This test program lets me test this out but check if the bindings are still working. If I click any of these RadioButtons I would expect the binding to break. But when enabling the timer (which activates a cycle to test the bindings) it acts as if the binding is working. Very confused.

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Controls 2.15

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Property Binding Test")

    Rectangle {
        anchors.fill: column1
        color: "lightblue"
    }

    Column {
        id: column1

        property int radioValue: 0

        RadioButton {
            id: rad1

            checked: column1.radioValue === 0

            onClicked: column1.radioValue = 0
        }
        RadioButton {
            id: rad2

            checked: column1.radioValue === 1

            onClicked: column1.radioValue = 1
        }
        RadioButton {
            id: rad3

            checked: column1.radioValue === 2

            onClicked: column1.radioValue = 2
        }
        RadioButton {
            id: rad4

            checked: column1.radioValue === 3

            onClicked: column1.radioValue = 3
        }
    }

    Timer {
        running: checkbox.checked
        interval: 500
        repeat: true

        onTriggered: {
            let tmp = column1.radioValue
            tmp += 1
            if(tmp >= 4){
                tmp = 0
            }
            column1.radioValue = tmp

            for(let cnt=0; cnt < column1.children.length; ++cnt){
                console.log(column1.children[cnt].checked)
            }
        }
    }

    CheckBox {
        id: checkbox

        anchors.top: column1.bottom

        text: "Run"
    }
}

[Asperamanca]

@fcarney
It looks like you can inspect bindings using KDAB's GammaRay