### 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_
messageCountMap.forEach(count => {
          newCount += count;
        });
      }
    }
    pendingFiberToMessageCountMap.delete(fiber);
    return newCount;
  }
  function recordPendingErrorsAndWarnings() {
    clearPendingErrorsAndWarningsAfterDelay();
    fibersWithChangedErrorOrWarningCounts.forEach(fiber => {
      const fiberID = getFiberIDUnsafe(fiber);
      if (fiberID === null) {
         D
      } else {
        const errorCount = mergeMapsAndGetCountHelper(
          fiber,
          fiberID,
          pendingFiberToErrorsMap,
          fiberIDToErrorsMap,
        );
        const warningCount = mergeMapsAndGetCountHelper(
          fiber,