Resolve "[Rails5] duplicate key value violates unique constraint "index_gpg_signatures_on_commit_sha""
requested to merge 50224-rails5-duplicate-key-value-violates-unique-constraint-index_gpg_signatures_on_commit_sha into master
Applies https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/21152 to another spec file.
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/50224.
Edited by Sean McGivern