Section links fail in date-based changelog directive

[lcawl]

Describe the bug

While testing an update to the Cloud Hosted release notes, I noticed that the links in the right-hand navigation (e.g. https://www.elastic.co/docs/release-notes/cloud-hosted#2025-11) no longer work.

I think this is likely a side effect of #2576

Expected behavior

Clicking on a title like "November 2025" in the "On this page" navigation should take you to the appropriate section of the page.

Steps to reproduce

1. Go to https://www.elastic.co/docs/release-notes/cloud-hosted
2. Click on any of the date titles in the right-hand navigation. Nothing happens.

Tooling

• docs-builder
• migration tooling
• I'm not sure

[lcawl]

Fixed by #2931