### 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_
alternate.memoizedState.element != null;
      const isMounted =
        current.memoizedState != null && current.memoizedState.element != null;
      if (!wasMounted && isMounted) {
         M
        setRootPseudoKey(currentRootID, current);
        mountFiberRecursively(current, null, false, false);
      } else if (wasMounted && isMounted) {
         U
        updateFiberRecursively(current, alternate, null, false);
      } else if (wasMounted && !isMounted) {
         U
        removeRootPseudoKey(currentRootID);
        recordUnmount(current, false);
      }
    } else {
       M
      setRootPseudoKey(currentRootID, current);
      mountFiberRecursively(current, null, false, false);
    }
    if (isProfiling && isProfilingSupported) {
      const commitProfilingMetadata = ((rootToCommitProfilingMetadataMap: any): CommitProfilingMetadataMap).get(
        currentRootID,
      );
      if (commitProfilingMetadata != null) {
        commitProfilingMetadata.push(
          ((currentCommitProfilingMetadata: any): CommitProfilingData),
        );
      } else {
        ((rootToCommitProfilingMetadataMap: any): CommitProfilingMetadataMap).set(