Regression[5.14->5.15] 'model' is no longer an implicit data role in delegates in Custom delegate

// Some comments here
public String getFoo()
{    ListView {
        model: myModel
        anchors.fill: parent
        delegate: Row {
            // Uncomment for this to work under 5.15
           // required property var model
            ImageToggle {
                id: image
                source: "glyph_16_arrow_patch"
                isSelected: model.age < 6
                // Uncomment for this to work under 5.15
               // Component.onCompleted:isSelected= model.age < 6
            }
            Text {
                text: "age:" + model.age + " selected:" + image.isSelected
            }
        }
    }

    ListModel {
        id: myModel
        ListElement { type: "Cat"; age: 5; }
        ListElement { type: "Dog"; age: 8; }
    }
    return foo;
}