endpoint for lock file feature in EE seems to always be empty

The path provided in https://gitlab.com/gitlab-org/gitlab-ee/blob/master/app/views/projects/tree/_tree_content.html.haml#L1 'data-path-locks-toggle': toggle_project_path_locks_path(@project) always seem to render an empty string, which, following the code never posts the needed data to the given URL: https://gitlab.com/gitlab-org/gitlab-ee/blob/master/ee/app/assets/javascripts/path_locks.js#L6 because the URL is empty