### 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_
g
         a
        const primaryChildFragment = fiber.child;
        const fallbackChildFragment = primaryChildFragment
          ? primaryChildFragment.sibling
          : null;
        const fallbackChild = fallbackChildFragment
          ? fallbackChildFragment.child
          : null;
        if (fallbackChild !== null) {
          child = fallbackChild;
        }
      }
      while (child !== null) {
        findReorderedChildrenRecursively(child, nextChildren);
        child = child.sibling;
      }
    }
  }
   Returns whether closest unfiltered fiber parent needs to reset its child list.
  function updateFiberRecursively(
    nextFiber: Fiber,
    prevFiber: Fiber,
    parentFiber: Fiber | null,
    traceNearestHostComponentUpdate: boolean,
  ): boolean {
    const id = getOrGenerateFiberID(nextFiber);
    if (__DEBUG__) {
      debug('updateFiberRecursively()', nextFiber, parentFiber);
    }