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.
renderExpirationTime,
            );
            workInProgress.child = primaryChildFragment;
             
             
            return fallbackChildFragment;
          }
        }
      }
       
       
      const currentPrimaryChildFragment: Fiber = (current.child: any);
      const currentFallbackChildFragment: Fiber = (currentPrimaryChildFragment.sibling: any);
      if (nextDidTimeout) {
         
         
        const nextFallbackChildren = nextProps.fallback;
        const primaryChildFragment = createWorkInProgress(
          currentPrimaryChildFragment,
          currentPrimaryChildFragment.pendingProps,
        );
        primaryChildFragment.return = workInProgress;
        if ((workInProgress.mode & BlockingMode) === NoMode) {
           
           
          const progressedState: SuspenseState = workInProgress.memoizedState;
          const progressedPrimaryChild: Fiber | null =
            progressedState !== null
              ? (workInProgress.child: any).child
              : (workInProgress.child: any);