Specify location of CHANGELOG file

Summary

As a gitlab-ee user whose team only creates debian packages, it is impossible to specify the location (debian/changelog) for the changelog (available on the main repository page).

Steps to reproduce

• Click "Add changelog"
• Change path to debian/changelog
• Click "Commmit changes"

Error: A file with this name already exists.

Example Project

• https://salsa.debian.org/debian/devscripts does not have changelog configured because the file location is in "./debian"
• https://salsa.debian.org/debian/freetype has it configured because the changelog is in the root directory.

What is the current bug behavior?

Error message appears, action is denied.

What is the expected correct behavior?

No error message, location of changelog is saved.

Relevant logs and/or screenshots

None

Output of checks

None

Results of GitLab environment info

Not relevant

Results of GitLab application Check

Not relevant

Possible fixes

No workaround found. What was tested: removing the file via git, adding changelog location via GUI, pulling code and restoring contents of file.