fetchNavigation with /_dir.yml and /index.md return incoherent results

[jip149]

Environment

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• Operating System: Linux
• Node Version: v21.6.0
• Nuxt Version: 3.11.2
• CLI Version: 3.11.1
• Nitro Version: 2.9.6
• Package Manager: [email protected]
• Builder: -
• User Config: devtools, modules, typescript
• Runtime Modules: [email protected], @nuxt/[email protected], @nuxtjs/[email protected], [email protected]
• Build Modules: -

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Reproduction

https://github.com/jip149/nuxt-content-fetchNavigation-bug

Describe the bug

When content dir has both a _dir.yml and index.md file, metadata from _dir.yml is used, and metadata from index.md can't be found in the navigation.

If the index.md file is removed, metadata from _dir.yml can't be found in the navigation.

Subdirectories work as expected, see the example directory in the repo above.

Additional context

No response

Logs

No response