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.
expect(Scheduler).toHaveYielded(['Mount A [0]', 'Mount B [0]']);
      });
      act(() => {
        
        ReactNoop.render(<Counter count={1} />, () =>
          Scheduler.unstable_yieldValue('Sync effect'),
        );
        expect(Scheduler).toFlushAndYieldThrough(['Count: 1', 'Sync effect']);
        expect(ReactNoop.getChildren()).toEqual([span('Count: 1')]);
        expect(() => ReactNoop.flushPassiveEffects()).toThrow('Oops');
        expect(Scheduler).toHaveYielded(
          deferPassiveEffectCleanupDuringUnmount &&
            runAllPassiveEffectDestroysBeforeCreates
            ? ['Unmount A [0]', 'Unmount B [0]', 'Mount A [1]', 'Oops!']
            : [
                'Unmount A [0]',
                'Unmount B [0]',
                'Mount A [1]',
                'Oops!',
                'Unmount A [1]',
              ],
        );
        expect(ReactNoop.getChildren()).toEqual([]);
      });
      if (
        deferPassiveEffectCleanupDuringUnmount &&
        runAllPassiveEffectDestroysBeforeCreates
      ) {
        expect(Scheduler).toHaveYielded([