### 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 prevFallbackChildSet = prevFiberChild
        ? prevFiberChild.sibling
        : null;
      if (
        nextFallbackChildSet != null &&
        prevFallbackChildSet != null &&
        updateFiberRecursively(
          nextFallbackChildSet,
          prevFallbackChildSet,
          nextFiber,
          traceNearestHostComponentUpdate,
        )
      ) {
        shouldResetChildren = true;
      }
    } else if (prevDidTimeout && !nextDidTimeOut) {
       F
       1
       N
       2
      const nextPrimaryChildSet = nextFiber.child;
      if (nextPrimaryChildSet !== null) {
        mountFiberRecursively(
          nextPrimaryChildSet,
          shouldIncludeInTree ? nextFiber : parentFiber,
          true,
          traceNearestHostComponentUpdate,
        );
      }
      shouldResetChildren = true;