$ git clone -n https://src.fedoraproject.org/rpms/fragments.git /var/lib/mock/f41-build-820125-152083/root/chroot_tmpdir/scmroot/fragments
Cloning into '/var/lib/mock/f41-build-820125-152083/root/chroot_tmpdir/scmroot/fragments'...
$ git fetch origin 6b2d498bbbb46ea5c7614fba11577c753c5f2193:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fragments
 * [new ref]         6b2d498bbbb46ea5c7614fba11577c753c5f2193 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b2d498 Use SPDX license IDs