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.
null,
            workInProgress,
            Component,
            props,
            context,
            renderExpirationTime,
          );
        } finally {
          reenableLogs();
        }
      }
    }
    reconcileChildren(null, workInProgress, value, renderExpirationTime);
    if (__DEV__) {
      validateFunctionComponentInDev(workInProgress, Component);
    }
    return workInProgress.child;
  }
}
function validateFunctionComponentInDev(workInProgress: Fiber, Component: any) {
  if (__DEV__) {
    if (Component) {
      if (Component.childContextTypes) {
        console.error(
          '%s(...): childContextTypes cannot be defined on a function component.',
          Component.displayName || Component.name || 'Component',
        );
      }
    }
    if (workInProgress.ref !== null) {