title: Android Design Lib CollapsingToolbarLayout stops interact when horizontal RecyclerView is touched
body: <p>I have an activity with CollapsingToolbarLayout for parallax effect(From Android Design Library) and FrameLayout where i set Fragment. </p>
  
  <p>Fragments layout contains NestedScrollView.</p>
  
  <p>Everything is working well except one moment. In NestedScrollView I have a horizontal RecyclerView with StaggerGridLayoutManager and when i scroll vertically from that recyclerview - parallax not starting. When i scroll from any other place of screen it works. </p>
  
  <p>Seems it's problem with layout_behavior tag or loosing focus of NestedScrollView.</p>
  
  <p>Does any one faced this problem  ? Some ideas ?</p>