$ git clone -n https://src.fedoraproject.org/rpms/golang-github-onsi-ginkgo-2.git /var/lib/mock/f40-build-781583-131738/root/chroot_tmpdir/scmroot/golang-github-onsi-ginkgo-2
Cloning into '/var/lib/mock/f40-build-781583-131738/root/chroot_tmpdir/scmroot/golang-github-onsi-ginkgo-2'...
$ git fetch origin bb399da28cee6e96e31d6b76b4bc8458952e47ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-onsi-ginkgo-2
 * [new ref]         bb399da28cee6e96e31d6b76b4bc8458952e47ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb399da Update to 2.15.0 - Closes rhbz#2259164