$ git clone -n https://src.fedoraproject.org/rpms/gerbera.git /var/lib/mock/f41-build-815461-149534/root/chroot_tmpdir/scmroot/gerbera
Cloning into '/var/lib/mock/f41-build-815461-149534/root/chroot_tmpdir/scmroot/gerbera'...
$ git fetch origin dd782595a5844f01c540153b65be3c08407ac934:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gerbera
 * [new ref]         dd782595a5844f01c540153b65be3c08407ac934 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd78259 2.2.0