### Website or app

https://codesandbox.io/s/react-playground-forked-j4niq

### Repro steps

Emoji seem supported but produce strange symbole

![image](https://user-images.githubusercontent.com/24865815/133793744-55a55582-90ad-425f-8a40-4c061a3c1d80.png)

To test emoji on Window Os, use `[win]+[.]` 🟩


### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

_No response_

### Error component stack (automated)

_No response_

### GitHub query string (automated)

_No response_
return [<Child />];
      }
      function Child() {
        return null;
      }
      withErrorsOrWarningsIgnored(
        ['Warning: Each child in a list should have a unique "key" prop'],
        () => {
          act(() => legacyRender(<Example />, container));
        },
      );
      expect(store).toMatchInlineSnapshot(`
        ✕ 1, ⚠ 0
        [root]
          ▾ <Example> ✕
              <Child>
      `);
    });
    it('can be cleared for the whole app', () => {
      function Example() {