### 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_
F
         t
        return (
          prevFiber.memoizedProps !== nextFiber.memoizedProps ||
          prevFiber.memoizedState !== nextFiber.memoizedState ||
          prevFiber.ref !== nextFiber.ref
        );
    }
  }
  type OperationsArray = Array<number>;
  const pendingOperations: OperationsArray = [];
  const pendingRealUnmountedIDs: Array<number> = [];
  const pendingSimulatedUnmountedIDs: Array<number> = [];
  let pendingOperationsQueue: Array<OperationsArray> | null = [];
  const pendingStringTable: Map<string, number> = new Map();
  let pendingStringTableLength: number = 0;
  let pendingUnmountedRootID: number | null = null;
  function pushOperation(op: number): void {
    if (__DEV__) {
      if (!Number.isInteger(op)) {
        console.error(
          'pushOperation() was called but the value is not an integer.',
          op,
        );
      }
    }
    pendingOperations.push(op);
  }
  function flushOrQueueOperations(operations: OperationsArray): void {
    if (pendingOperationsQueue !== null) {