$ git clone -n https://src.fedoraproject.org/rpms/CSFML.git /var/lib/mock/f40-build-2433139-60688/root/chroot_tmpdir/scmroot/CSFML
Cloning into '/var/lib/mock/f40-build-2433139-60688/root/chroot_tmpdir/scmroot/CSFML'...
$ git fetch origin 84f5a1042af7c513b91acf45ff40f6a284af7be5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/CSFML
 * [new ref]         84f5a1042af7c513b91acf45ff40f6a284af7be5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84f5a10 Upgrade to v2.6.0