Production changing anchors href?

[VmMad]

Problem: When attempting to switch versions from a 'NotFound' page in the production environment, the path incorrectly redirects to a '/404' link, instead of the current page.

Reproduction: The issue can be reproduced at this link: https://stackblitz.com/edit/github-r3urm9?file=src/theme/Navbar/Content/index.js

Reproduction steps:

1. Execute yarn build && yarn serve
2. Navigate to '/notfound'
3. In the navbar, click on the link to switch to /next/notfound.
4. Observe that the path redirects to /next/404 instead.

Expected behavior: The system should direct the user to /next/notfound instead of /next/404. Also, upon inspection with devtools, it is noticeable that the link's href and text values are inconsistent, even though they get the value from the same constant.