Repro case with a master build: https://codesandbox.io/s/stoic-mcnulty-dhygf?file=/src/App.js:668-703

Expected: we see content after a second.
Actual: fallback never resolves.

This happens in a sequence of:

1. Normal update
   - which suspends
2. Idle update
   - which also suspends
3. An unrelated normal update immediately followed by a ping (so they're batched)
   - here, we decide to stay on fallback, but should've shown the content

If you remove `_setVersion(v => v + 1);` on line 44 then the issue goes away.
return (
        <Suspense fallback="Loading...">
          <AsyncText ms={2000} text={text} />
        </Suspense>
      );
    }
    const root = ReactNoop.createRoot();
    await ReactNoop.act(async () => {
      root.render(<App text="Initial" />);
    });
    
    await ReactNoop.act(async () => {
      Scheduler.unstable_advanceTime(2000);
      await advanceTimers(2000);
    });
    expect(Scheduler).toHaveYielded([
      'Suspend! [Initial]',
      'Promise resolved [Initial]',
      'Initial',
    ]);