ee-files-location-check bug for non-'gitlab-org' repo-based MRs
The MR !4598 (merged) might break CI job ee-files-location-check
of Community-contributed EE-port MR: e.g., https://gitlab.com/tnir/gitlab-ee/-/jobs/54714797 !3474 (closed)
MRs with the source branch on gitlab-org/gitlab-ce would work, but those with the source branch not on gitlab-org/gitlab-ce would not work.
I don't think the following snippet (from scripts/ee-files-location-check) exit successfully for the forked repository as there is no #{ce_branch_name}
on gitlab.com/gitlab-org/gitlab-ce:
`git remote add canonical-ce https://gitlab.com/gitlab-org/gitlab-ce.git`
[...]
`git fetch canonical-ce #{ce_branch_name} --quiet`