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.
nextChildren = null;
  } else if (prevProps !== null && shouldSetTextContent(type, prevProps)) {
    
    
    workInProgress.effectTag |= ContentReset;
  }
  markRef(current, workInProgress);
  
  if (
    workInProgress.mode & ConcurrentMode &&
    renderExpirationTime !== Never &&
    shouldDeprioritizeSubtree(type, nextProps)
  ) {
    if (enableSchedulerTracing) {
      markSpawnedWork(Never);
    }
    
    workInProgress.expirationTime = workInProgress.childExpirationTime = Never;
    return null;
  }
  reconcileChildren(
    current,
    workInProgress,
    nextChildren,
    renderExpirationTime,
  );
  return workInProgress.child;
}
function updateHostText(current, workInProgress) {