message: Prevented error when destructuring
  Thought it was safe to remove this because of the !!state but it falls over destructuring undefined (happens when navigation and animations overlap)
diff: @@ -134,7 +134,7 @@ class Scene extends React.Component<SceneProps, SceneState> {
  var freezable = rest && !!React.Suspense;
  var {crumbs} = stateNavigator.stateContext;
  var stateContext = navigationEvent?.stateNavigator?.stateContext;
  - var {state, data} = stateContext || crumbs[crumb];
  + var {state, data} = stateContext || crumbs[crumb] || {};
  return !!state && (
  <Freeze enabled={freezable && crumb < crumbs.length && navigationEvent
  && (!stateContext['peek'] || stateContext['peek'] !== this.props.navigationEvent)}>
  