MouseArea pressed property change signal missing/wrong when propagating events

A MouseArea can either propagate events or have a correctly working onPressedChanged handler, but not both. Minimal example: a MouseArea fully covering a scrollable ListView, as in the following minimal (non-)working example:

import QtQuick 2.6
import QtQuick.Window 2.2

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

    ListView {
        model: [Qt.rgba(1,0,0,0.5),"red","green","blue"]
        delegate: Rectangle {
            height: 200
            width:  parent.width
            color:  modelData
        }

        anchors.fill: parent
    }

    MouseArea {
        anchors.fill: parent

        onPressed: {
            mouse.accepted = false;
        }
        onReleased: {
            mouse.accepted = false;
        }
        onPressedChanged: {
            console.log("pressed changed to " + pressed);
        }
        propagateComposedEvents: true
    }
}

There's something odd going on with the notification for the pressed property: onPressedChanged only gets called when the button is pressed. Moreover in this situation, pressed evaluates to false in onPressedChanged, which is the reason why I am filing this as a bug.

This happens regardless of "propagateComposedEvents". Only when "mouse.accepted=false;" is left out, does the pressed property get updated correctly (but then, of course, the ListView doesn't see the events at all, which isn't what I want).