Popup palette not updated when created by Repeater

import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

ApplicationWindow {
  width: 640
  height: 480
  visible: true
  title: qsTr("Hello World")

  ColumnLayout {

    // palette update works
    ComboBox {
      model: ["One", "Two", "Three"]

      Component.onCompleted: {
        console.log("POPUP created", popup);
        popup.objectName = "combobox1";
      }
    }

    Repeater {
      model: 3

      // no palette update
      delegate: ComboBox {
        model: ["REP One", "REP Two", "REP Three"]

        Component.onCompleted: {
          console.log("REPATER POPUP created", popup);
          popup.objectName = "combobox2";
        }
      }
    }
  }
}