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('Bar');
      return props.children;
    }
    function Foo({renderBar}) {
      Scheduler.unstable_yieldValue('Foo');
      return (
        <Suspense fallback={<Text text="Loading..." />}>
          {renderBar ? (
            <Bar>
              <AsyncText text="A" ms={100} />
              <Text text="B" />
            </Bar>
          ) : null}
        </Suspense>
      );
    }
    
    ReactNoop.render(<Foo />);
    expect(Scheduler).toFlushAndYield(['Foo']);
    
    ReactNoop.render(<Foo renderBar={true} />);
    expect(Scheduler).toFlushAndYield([
      'Foo',
      'Bar',
      
      'Suspend! [A]',
      
      'B',