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('Foo');
      return (
        <Suspense fallback={<Text text="Loading..." />}>
          <AsyncText text="A" ms={200} />
          <Suspense fallback={<Text text="Loading more..." />}>
            <AsyncText text="B" ms={450} />
          </Suspense>
        </Suspense>
      );
    }
    ReactNoop.render(<Foo />);
    
    expect(Scheduler).toFlushAndYield([
      'Foo',
      
      'Suspend! [A]',
      
      'Suspend! [B]',