### 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_
}
    untrackFibersSet.forEach(fiber => {
      const fiberID = getFiberIDUnsafe(fiber);
      if (fiberID !== null) {
        idToArbitraryFiberMap.delete(fiberID);
         A
        clearErrorsForFiberID(fiberID);
        clearWarningsForFiberID(fiberID);
      }
      fiberToIDMap.delete(fiber);
      const {alternate} = fiber;
      if (alternate !== null) {
        fiberToIDMap.delete(alternate);
      }
      if (forceErrorForFiberIDs.has(fiberID)) {
        forceErrorForFiberIDs.delete(fiberID);
        if (forceErrorForFiberIDs.size === 0 && setErrorHandler != null) {
          setErrorHandler(shouldErrorFiberAlwaysNull);
        }
      }
    });
    untrackFibersSet.clear();
  }
  function getChangeDescription(
    prevFiber: Fiber | null,
    nextFiber: Fiber,
  ): ChangeDescription | null {
    switch (getElementTypeForFiber(nextFiber)) {
      case ElementTypeClass:
      case ElementTypeFunction: