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.
Scheduler.unstable_yieldValue('Offscreen');
      return 'Offscreen';
    }
    function App({showContent}) {
      React.useLayoutEffect(() => {
        Scheduler.unstable_yieldValue('Commit');
      });
      return (
        <>
          <div hidden={true}>
            <Offscreen />
          </div>
          <Suspense fallback={<Text text="Loading..." />}>
            {showContent ? <AsyncText text="A" ms={2000} /> : null}
          </Suspense>
        </>
      );
    }
    
    ReactNoop.render(<App showContent={false} />);