https://codesandbox.io/s/upbeat-frost-3tt25

1. Press Suspend, see "Loading..."
2. Wait five seconds, you'll see "Happy birthday" at some point 
3. You won't see it again no matter how long you wait

Expected: you'll see it every five seconds.
Scheduler.unstable_yieldValue(props.text);
    return <span prop={props.text} ref={props.hostRef} />;
  }
  function AsyncText(props) {
    const text = props.text;
    try {
      TextResource.read([props.text, props.ms]);
      Scheduler.unstable_yieldValue(text);
      return <span prop={text} />;
    } catch (promise) {
      if (typeof promise.then === 'function') {
        Scheduler.unstable_yieldValue(`Suspend! [${text}]`);
      } else {
        Scheduler.unstable_yieldValue(`Error! [${text}]`);
      }
      throw promise;
    }
  }
  it('does not restart rendering for initial render', async () => {
    function Bar(props) {