[Issue]: Book library where author contains single book displays incorrectly

[SethFalco]

Please describe your bug

I'm creating a book library in my Jellyfin instance, as recommended in the Jellyfin documentation.

Books
…
└── Books
    └── Author
        ├── Book1.epub
…

— https://jellyfin.org/docs/general/server/media/books/

However, for authors where I only have one of their books, Jellyfin seems to treat the book as if it has the name of the author.

So instead of either seeing a directory with the name of the author, or just seeing the book, it shows a book titled with the name of the author instead.

This shows how my library looks like:

This shows the metadata of the first book in the screenshot, where it uses the directory name (the author) instead of the file name (the book name):

Reproduction Steps

1. Launch Jellyfin
2. Create a directory for the Book library
3. In the directory, create a directory called Books
4. In the Books directory, create a directory for an author
5. In the author directory, add a book
6. Either wait or manually refresh the Book library
7. Observe that the library contains a book with the name of the author

Jellyfin Version

10.8.13

if other:

No response

Environment

- OS: Ubuntu 22.04.4 LTS x86_64
- Linux Kernel: 5.15.0-100-generic
- Virtualization: Docker
- Clients: Jellyfin Media Player
- Browser: Firefox
- FFmpeg Version: 
- Playback Method: 
- Hardware Acceleration:
- GPU Model: NVIDIA GeForce RTX 3070
- Plugins: AudioDB, Bookshelf, MusicBrainz, OMDb, Studio Images, TMDb
- Reverse Proxy: nginx
- Base URL: none
- Networking: 
- Storage: local

Jellyfin logs

N/A

FFmpeg logs

No response

Please attach any browser or client logs here

No response

Please attach any screenshots here

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[jellyfin-bot]

Hi, it seems like your issue report has the following item(s) that need to be addressed:

• You have not filled in the environment completely.
• You have not provided a sufficient amount of logs. Please provide every line during the time of the event plus 10 lines before and after.
• You have not provided any ffmpeg logs. They should be included if transcoding or remuxing.

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