Unlike ListView (which works fine), the Repeater{} does not update when data in ListModel are changed...

ListModel {
    id: myModel

    ListElement {
        name: "Apple"
        cost: 2.45
    }
    ListElement {
        name: "Orange"
        cost: 3.25
    }
    ListElement {
        name: "Banana"
        cost: 1.95
    }
}

Column {
	Repeater {
		model: myModel
		spacing: 5

		Rectangle {
			width: 20
			height: 50
			color: "yellow"
			required property int index

			Label {
				anchors.left: parent.left
				anchors.top: parent.top
				text: myModel.get(index).name
			}
			Label {
				anchors.right: parent.right
				anchors.top: parent.top
				text: myModel.get(index).cost
			}

			MouseArea {
				onClicked: myModel.setProperty(index, "cost", 5);			// this shall update the and show me new price
			}
		}
	}
} 

again, same inside ListModel works just fine and Text{} property updates... so only Repeater is not working here...

there are several stuff people reported this (same or similar?) issue before:

QTBUG-28556 Repeater does not refresh role names on model reset - Qt Bug Tracker

QTBUG-32132 Qml do not updates roles names on QAbstractItemModel::reset signal - Qt Bug Tracker

[Interest] QML Repeater delegate not updating (qt-project.org)

[updating elements in a repeater? | Qt Forum|https://forum.qt.io/topic/124628/updating-elements-in-a-repeater/4]

there is no mention in the documentaion that it should not update, tho people suggest to use .clear() and append() all of it back... which is nightmare solution :/