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.
return (
            <Suspense fallback={<Text text="Loading..." />}>
              <Parent />
            </Suspense>
          );
        }
        ReactNoop.renderLegacySyncRoot(<App middleText="B" />);
        expect(Scheduler).toHaveYielded([
          'Suspend! [Hi]',
          'Loading...',
          
          'Child is hidden: true',
        ]);
        await advanceTimers(1000);
        expect(Scheduler).toHaveYielded(['Promise resolved [Hi]']);
        expect(Scheduler).toFlushExpired(['Hi']);
      });
    }
    it('handles errors in the return path of a component that suspends', async () => {
      
      
      
      
      class ErrorBoundary extends React.Component {