Repro: https://codesandbox.io/s/fast-water-4i4jb

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
pushHostRootContext(workInProgress);
  const updateQueue = workInProgress.updateQueue;
  invariant(
    current !== null && updateQueue !== null,
    'If the root does not have an updateQueue, we should have already ' +
      'bailed out. This error is likely caused by a bug in React. Please ' +
      'file an issue.',
  );
  const nextProps = workInProgress.pendingProps;
  const prevState = workInProgress.memoizedState;
  const prevChildren = prevState !== null ? prevState.element : null;
  cloneUpdateQueue(current, workInProgress);
  processUpdateQueue(workInProgress, nextProps, null, renderExpirationTime);
  const nextState = workInProgress.memoizedState;
  
  
  const nextChildren = nextState.element;
  if (nextChildren === prevChildren) {