Removing tags in bulk for a container registry

Summary

Having a registry with multiple tags inside it, trying to use DELETE /projects/:id/registry/repositories/:repository_id/tags with name_regex doesn't seem to be working. It will return a 202 status code, the background job will run successfully but nothing happens, no tags have been removed.

Even though in our documentation https://docs.gitlab.com/ee/api/container_registry.html#delete-repository-tags-in-bulk

We have a snippet to remove all tags but keep the latest x, but that doesn't work either.

curl --request DELETE --data 'name_regex=.*' --data 'keep_n=1' --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/projects/5/registry/repositories/2/tags"

Steps to reproduce

1. Create multiple tags for a registry.
2. Try to delete them in bulk

Example Project

https://gitlab.com/rvzon/registry_test/container_registry

What is the current bug behavior?

Nothing happens, tags are not removed.

What is the expected correct behavior?

That the tags are removed.

Relevant logs and/or screenshots