### Steps to reproduce 1. Create a new GitLab project 2. Perform a git based operation on branch using `$CI_COMMIT_BRANCH`. We get an error like this:  -- https://gitlab.com/tkuah/change_files/-/jobs/3647921580 Observations: 1. Seeing `Checking out acbaaf42 as main...`, I expect the branch to be `main` but as you can see in above screenshot, it is detached. Is this expected ? 2. If this detached is expected, can we improve the above message ? 3. Could we also document this somewhere in https://docs.gitlab.com/ee/ci/pipelines/ ? Note: I am unsure if this is a gitlab~2278648 but will start with bug for now