[REG 6.8 -> 6.9]Crash when invoking `destroy` on self

import QtQuick
import QtQuick.Controls

Window {
  id: root

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

  Button {
    text: "Click me"
    onClicked: singleShot.createObject(root)
  }

  Component {
    id: singleShot
    Timer {
      id: lockTimer
      interval: 1000
      running: true
      onTriggered: lockTimer.destroy()
    }
  }
}