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.
'Render: 21',
        21,
      ]);
      expect(ReactNoop.getChildren()).toEqual([span(21)]);
      
      
      ReactNoop.act(() => {
        counter.current.dispatch('reset');
      });
      ReactNoop.render(<Counter ref={counter} />);
      expect(Scheduler).toHaveYielded([
        'Render: 0',
        'Render: 1',
        'Render: 11',
        'Render: 12',
        'Render: 22',
        22,
      ]);
      expect(ReactNoop.getChildren()).toEqual([span(22)]);
    });
    it('discards render phase updates if something suspends', () => {
      const thenable = {then() {}};
      function Foo({signal}) {
        return (
          <Suspense fallback="Loading...">
            <Bar signal={signal} />
          </Suspense>
        );
      }
      function Bar({signal: newSignal}) {