Describe The Bug
When a changed comic has its ComicInfo.xml file updated, the state should be converted to stable. Instead, it's staying marked as changed.

To Reproduce The Bug
Steps to reproduce the behavior. Please be as complete as possible and describe the exact steps and values used to cause the error:

1. Scrape a comic book.
2. Go to the details page for that comic.
3. Click the Update Metadata button.
4. After being updated, the comic stays marked as changed.

Expected Behavior

1. The comic should be marked as stable.

Operating System
Where is ComiXed running?

• Windows
• Linux (any distro)
• MacOS
• Docker (if checked, please select the host OS as well)

Database
What database is ComiXed using?

• Postgres
• MySQL/MariahDB
• H2 (embedded, generally unsupported)
• Other (please provide the name in the bug description)

Browser (If A Web Issue)

• Chrome
• Firefox
• Safari
• Other (if so, please provide a name)

ComiXed Build Detail:

Source Branch Name: 4c3df118f47b9270ecd0e02d358b050acc213fb9
Build Date & Time: 2025-10-20T00:13:18.000+00:00.
Build Machine Name: runnervmzdgdc.
ComiXed Release Version: 3.0.1.
Last Commit Date & Time: 2025-10-19T02:59:00.000+00:00.
Branch Status: Clean
Remote Branch: https://github.com/comixed/comixed
Database URL: jdbc:postgresql://localhost:5432/comixed
Runtime JVM: 21.0.8+12-LTS-250 (Oracle Corporation) running on Windows 10 v10.0 (amd64)