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.
const [text, _setText] = useState('A');
        setInnerText = _setText;
        
        useEffect(() => {
          if (text === outerText) {
            Scheduler.unstable_yieldValue('Commit Child');
          } else {
            Scheduler.unstable_yieldValue(
              'FIXME: Texts are inconsistent (tearing)',
            );
          }
        }, [text, outerText]);
        return (
          <>
            <AsyncText text={'Inner text: ' + text} />
            <Text text={'Inner step: ' + step} />
          </>
        );
      }
      
      function setText(text) {