"Quit" from quicklist doesn’t close all open windows, doesn’t actually quit the application

Here is the actual QML code contained in the example click package:

import QtQuick 2.4
import QtQuick.Window 2.2
QtObject {
  readonly property var allWindows: []
  property var windowFactory: Component {
    Window {
      onClosing: destroy()
      Component.onCompleted: allWindows.push(this)
      Component.onDestruction: {
        for (var w in allWindows) {
          if (this === allWindows[w]) {
            allWindows.splice(w, 1)
            return
          }
        }
      }
      Rectangle {
        anchors {
          fill: parent
          margins: 20
        }
        color: Qt.rgba(Math.random(), Math.random(), Math.random(), 1)
      }
      MouseArea {
        anchors.fill: parent
        onClicked: windowFactory.createObject(null).show()
      }
    }
  }
  property var applicationMonitor: Connections {
    target: Qt.application
    onAboutToQuit: console.log("quitting application, %1 windows open".arg(allWindows.length))
  }
  Component.onCompleted: windowFactory.createObject(null).show()
}

Related to bug #1624407 ?

Status changed to 'Confirmed' because the bug affects multiple users.

This bug was fixed in the package qtmir - 0.4.8+17.04.20161024-0ubuntu1

---------------
qtmir (0.4.8+17.04.20161024-0ubuntu1) zesty; urgency=medium

  [ Andrea Bernabei ]
  * Add missing default return value to qImageFormatFromMirPixelFormat

  [ Michael Zanetti ]
  * don't lose resize events that come in while the app is suspended

  [ Nick Dedekind ]
  * Close windows in reverse order. (LP: #1622717)

 -- Michael Zanetti <email address hidden> Mon, 24 Oct 2016 11:32:53 +0000

I thought this issue was still open since we haven't implemented a proper solution in Mir yet. But then I noticed that's a different bug 1624407 :)