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.
let [show, setShow] = React.useState(false);
      _setShow = setShow;
      return (
        <Suspense fallback="Loading...">
          {show && <AsyncText text="A" />}
        </Suspense>
      );
    }
    await ReactNoop.act(async () => {
      ReactNoop.render(<App />);
    });
    
    await ReactNoop.act(async () => _setShow(true));
    expect(Scheduler).toHaveYielded(['Suspend! [A]']);
    Scheduler.unstable_advanceTime(100);
    await advanceTimers(100);
    expect(Scheduler).toHaveYielded(['Promise resolved [A]']);
  });
  it('shows the parent fallback if the inner fallback should be avoided', async () => {
    function Foo({showC}) {