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.
}
             
             
            if (enableProfilerTimer && workInProgress.mode & ProfileMode) {
               
              let treeBaseDuration = 0;
              let hiddenChild = primaryChildFragment.child;
              while (hiddenChild !== null) {
                treeBaseDuration += hiddenChild.treeBaseDuration;
                hiddenChild = hiddenChild.sibling;
              }
              primaryChildFragment.treeBaseDuration = treeBaseDuration;
            }
             
            const fallbackChildFragment = createFiberFromFragment(
              nextFallbackChildren,
              mode,
              renderExpirationTime,
              null,
            );
            fallbackChildFragment.return = workInProgress;
            primaryChildFragment.sibling = fallbackChildFragment;
            fallbackChildFragment.effectTag |= Placement;
            primaryChildFragment.childExpirationTime = getRemainingWorkInPrimaryTree(
              current,
              workInProgress,
              renderExpirationTime,
            );
            workInProgress.memoizedState = updateSuspenseState(
              current.memoizedState,