title: ChildFragmentManager + ViewPager + Animation = not good
body: <p>My app build on many fagments and i change this fragments with horizontal slide animation. Some fragments contain ViewPager with FragmentStatePagerAdapter. In process of restoring fragments from backstack i see black page of adapter.</p>
  
  <p><img src="https://i.stack.imgur.com/loOcO.png" alt="replacing from right to left"></p>
  
  <p><img src="https://i.stack.imgur.com/AqX30.png" alt="restoring from back stack">
  Looks like childfragmentmanager in FragmentStatePagerAdapter destroed too soon. How to fix that?</p>