[From the Profiler docs](https://reactjs.org/docs/profiler.html#onrender-callback):

> The Profiler requires an onRender function as a prop. React calls this function any time a component within the profiled tree “commits” an update.

However, given:

```jsx
import React from 'react'
import ReactDOM from 'react-dom'

function Counter() {
  const [count, setCount] = React.useState(0)
  const increment = () => setCount(c => c + 1)
  return <button onClick={increment}>{count}</button>
}

function App() {
  return (
    <div>
      <React.Profiler
        id="counter"
        onRender={() => console.log('called')}
      >
        <div>
          Profiled counter
          <Counter />
        </div>
      </React.Profiler>
      <div>
        Unprofiled counter
        <Counter />
      </div>
    </div>
  )
}

ReactDOM.render(<App />, document.getElementById('root'))
```

I'm getting a log when I click on the unprofiled counter.

Reproduction: https://codesandbox.io/s/react-codesandbox-tnff6

Am I misunderstanding this API, or is this a bug?
expect(Scheduler).toHaveYielded([
          'read current time',
          'read current time',
        ]);
        
        jest.mock('scheduler', () =>
          require.requireActual('scheduler/unstable_mock'),
        );
      });
      it('logs render times for both mount and update', () => {
        const callback = jest.fn();
        Scheduler.unstable_advanceTime(5); 
        const renderer = ReactTestRenderer.create(
          <React.Profiler id="test" onRender={callback}>
            <AdvanceTime />
          </React.Profiler>,
        );
        expect(callback).toHaveBeenCalledTimes(1);
        let [call] = callback.mock.calls;
        expect(call).toHaveLength(enableSchedulerTracing ? 7 : 6);
        expect(call[0]).toBe('test');
        expect(call[1]).toBe('mount');
        expect(call[2]).toBe(10); 
        expect(call[3]).toBe(10); 
        expect(call[4]).toBe(5); 
        expect(call[5]).toBe(15); 
        expect(call[6]).toEqual(enableSchedulerTracing ? new Set() : undefined); 
        callback.mockReset();
        Scheduler.unstable_advanceTime(20);