$ git clone -n https://src.fedoraproject.org/rpms/odcs.git /var/lib/mock/f41-build-side-1-2781016-32519/root/chroot_tmpdir/scmroot/odcs
Cloning into '/var/lib/mock/f41-build-side-1-2781016-32519/root/chroot_tmpdir/scmroot/odcs'...
$ git fetch origin bf234911ea1ae987460155be2f8de98dfa431a7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/odcs
 * [new ref]         bf234911ea1ae987460155be2f8de98dfa431a7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf23491 0.8.1