Sandbox: https://codesandbox.io/s/cranky-kapitsa-op3jh

Repro: type "a" and then after a second "b"

Expected: Eventually you'll see "ab" in all fields. Pending "..." indicator goes away.

Actual: You'll keep seeing "a" in low pri field. Pending "..." indicator is stuck.
ReactNoop.render(<App showMore={true} />);
        expect(() => {
          expect(() => {
            expect(Scheduler).toFlushAndYield([]);
          }).toThrow('Rendered more hooks than during the previous render');
        }).toErrorDev([
          'Warning: React has detected a change in the order of Hooks called by App. ' +
            'This will lead to bugs and errors if not fixed. For more information, ' +
            'read the Rules of Hooks: https://fb.me/rules-of-hooks\n\n' +
            '   Previous render            Next render\n' +
            '   ------------------------------------------------------\n' +
            '1. useEffect                  useEffect\n' +
            '2. undefined                  useEffect\n' +
            '   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\n',
        ]);
      });
      
      
      
      
      
      
      
      
    });
  });
  it('eager bailout optimization should always compare to latest rendered reducer', () => {
    
    let setCounter;
    function App() {