### Website or app

https://github.com/reactjs/reactjs.org/pull/4981

### Repro steps

1. Wrap something into `<Fragment key="stuff">`
2. It doesn't show up in DevTools

We filter out fragments because they tend to be useless. But this one is important! Keys are crucial and we should show anything with a key in the tree.

### 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_
const parentB = parentA.alternate;
      if (parentB === null) {
         T
         h
         i
         o
        const nextParent = parentA.return;
        if (nextParent !== null) {
          a = b = nextParent;
          continue;
        }
         If there's no parent, w
        break;
      }
       I
       a
       p
      if (parentA.child === parentB.child) {
        let child = parentA.child;
        while (child) {
          if (child === a) {
             W
            assertIsMounted(parentA);
            return fiber;
          }
          if (child === b) {
             W
            assertIsMounted(parentA);
            return alternate;
          }