### 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_
expect(store).toMatchSnapshot('4: toggle fallback on');
    });
  });
  describe('getIndexOfElementID', () => {
    beforeEach(() => {
      store.collapseNodesByDefault = false;
    });
    it('should support a single root with a single child', () => {
      const Grandparent = () => (
        <React.Fragment>
          <Parent />
          <Parent />
        </React.Fragment>
      );
      const Parent = () => <Child />;
      const Child = () => null;
      act(() => legacyRender(<Grandparent />, document.createElement('div')));
      for (let i = 0; i < store.numElements; i++) {
        expect(store.getIndexOfElementID(store.getElementIDAtIndex(i))).toBe(i);
      }
    });
    it('should support multiple roots with one children each', () => {
      const Grandparent = () => <Parent />;
      const Parent = () => <Child />;
      const Child = () => null;
      act(() => {
        legacyRender(<Grandparent />, document.createElement('div'));
        legacyRender(<Grandparent />, document.createElement('div'));
      });
      for (let i = 0; i < store.numElements; i++) {