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 init = lazyComponent._init;
        try {
          outerMemoType = init(payload);
        } catch (x) {
          outerMemoType = null;
        }
        
        const outerPropTypes = outerMemoType && (outerMemoType: any).propTypes;
        if (outerPropTypes) {
          checkPropTypes(
            outerPropTypes,
            nextProps, 
            'prop',
            getComponentName(outerMemoType),
          );
        }
      }
    }
  }
  if (current !== null) {
    const prevProps = current.memoizedProps;
    if (
      shallowEqual(prevProps, nextProps) &&
      current.ref === workInProgress.ref &&
      
      (__DEV__ ? workInProgress.type === current.type : true)
    ) {
      didReceiveUpdate = false;
      if (updateExpirationTime < renderExpirationTime) {