$ git clone -n https://src.fedoraproject.org/rpms/libcgroup.git /var/lib/mock/f41-build-side-1-2647579-27306/root/chroot_tmpdir/scmroot/libcgroup
Cloning into '/var/lib/mock/f41-build-side-1-2647579-27306/root/chroot_tmpdir/scmroot/libcgroup'...
$ git fetch origin d24060b73baf2b6d153f17ed3cfe6a3c9a643d09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcgroup
 * [new ref]         d24060b73baf2b6d153f17ed3cfe6a3c9a643d09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d24060b convert license to SPDX