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.
'Layout Effect [C]',
      'Layout Effect [Loading...]',
      'Commit root',
    ]);
    
    expect(Scheduler).toFlushAndYield([
      'Effect [A]',
      
      
      'Effect [C]',
      'Effect [Loading...]',
    ]);
    expect(ReactNoop).toMatchRenderedOutput(
      <>
        <span hidden={true} prop="A" />
        <span hidden={true} prop="C" />
        <span prop="Loading..." />
      </>,
    );
    await resolveText('B');
    expect(Scheduler).toHaveYielded(['Promise resolved [B]']);
    if (
      ReactFeatureFlags.deferPassiveEffectCleanupDuringUnmount &&
      ReactFeatureFlags.runAllPassiveEffectDestroysBeforeCreates
    ) {
      expect(Scheduler).toFlushAndYield([
        'B',
        'Destroy Layout Effect [Loading...]',
        'Layout Effect [B]',
        'Destroy Effect [Loading...]',