title: Nested ScrollView block parent scroll when started scrolling in child
body: <p>I have a React Native app with a parent ScrollView component that wraps other 2 ScrollViews that are siblings. How could I force the parent to only scroll when I've started scrolling from outside the child components?</p>
  <p><strong>Current behavior:</strong></p>
  <blockquote>
  <p>When I start scrolling in a child, the child scrolls, but when the list reaches the end, the parent starts scrolling (finger was not removed from the screen, so it was the same scrolling action).</p>
  </blockquote>
  <p><strong>Desired behavior:</strong></p>
  <blockquote>
  <p>When I start scrolling in a child, the child scrolls, but when the list reaches the end, the parent does NOT scroll until I interrupt the current scrolling action and start scrolling again from the area of the parent.</p>
  </blockquote>