$ git clone -n https://src.fedoraproject.org/rpms/python-gemfileparser2.git /var/lib/mock/f39-build-1999735-43957/root/chroot_tmpdir/scmroot/python-gemfileparser2
Cloning into '/var/lib/mock/f39-build-1999735-43957/root/chroot_tmpdir/scmroot/python-gemfileparser2'...
$ git fetch origin 998184b7beaa9d9bb29711fbc7946d699e149e69:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-gemfileparser2
 * [new ref]         998184b7beaa9d9bb29711fbc7946d699e149e69 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 998184b Initial import