### 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_
child = child.sibling;
        }
         W
         w
        throw Error('Unable to find node on an unmounted component.');
      }
      if (a.return !== b.return) {
         T
         f
         b
         s
        a = parentA;
        b = parentB;
      } else {
         T
         d
         w
        
         S
        let didFindChild = false;
        let child = parentA.child;
        while (child) {
          if (child === a) {
            didFindChild = true;
            a = parentA;
            b = parentB;
            break;
          }
          if (child === b) {
            didFindChild = true;