ApplicationWindow: toolbar draws before contents, allowing contents to draw over it

import QtQuick 2.1
import QtQuick.Controls 1.0

ApplicationWindow {
  width: 640
  height: 480

  toolBar: ToolBar {
    ToolButton {
      anchors.verticalCenter: parent.verticalCenter
      text: 'Button'
    }
  }

  Rectangle {
    y: -200
    width: parent.width
    height: 1000

    color: 'red'
  }
}