### 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('2: resolved');
    });
    it('should support expanding parts of the tree', () => {
      const Grandparent = ({count}) => (
        <React.Fragment>
          <Parent count={count} />
          <Parent count={count} />
        </React.Fragment>
      );
      const Parent = ({count}) =>
        new Array(count).fill(true).map((_, index) => <Child key={index} />);
      const Child = () => <div>Hi!</div>;
      act(() =>
        legacyRender(<Grandparent count={2} />, document.createElement('div')),
      );
      expect(store).toMatchSnapshot('1: mount');
      const grandparentID = store.getElementIDAtIndex(0);
      act(() => store.toggleIsCollapsed(grandparentID, false));
      expect(store).toMatchSnapshot('2: expand Grandparent');
      const parentOneID = store.getElementIDAtIndex(1);
      const parentTwoID = store.getElementIDAtIndex(2);
      act(() => store.toggleIsCollapsed(parentOneID, false));
      expect(store).toMatchSnapshot('3: expand first Parent');
      act(() => store.toggleIsCollapsed(parentTwoID, false));
      expect(store).toMatchSnapshot('4: expand second Parent');
      act(() => store.toggleIsCollapsed(parentOneID, true));
      expect(store).toMatchSnapshot('5: collapse first Parent');
      act(() => store.toggleIsCollapsed(parentTwoID, true));
      expect(store).toMatchSnapshot('6: collapse second Parent');