[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?
revealOrder !== 'together' &&
      !didWarnAboutRevealOrder[revealOrder]
    ) {
      didWarnAboutRevealOrder[revealOrder] = true;
      if (typeof revealOrder === 'string') {
        switch (revealOrder.toLowerCase()) {
          case 'together':
          case 'forwards':
          case 'backwards': {
            warning(
              false,
              '"%s" is not a valid value for revealOrder on <SuspenseList />. ' +
                'Use lowercase "%s" instead.',
              revealOrder,
              revealOrder.toLowerCase(),
            );
            break;
          }
          case 'forward':
          case 'backward': {
            warning(
              false,
              '"%s" is not a valid value for revealOrder on <SuspenseList />. ' +
                'React uses the -s suffix in the spelling. Use "%ss" instead.',
              revealOrder,
              revealOrder.toLowerCase(),
            );
            break;
          }
          default: