$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Cbc.git /var/lib/mock/f41-build-side-1-2811082-32926/root/chroot_tmpdir/scmroot/coin-or-Cbc
Cloning into '/var/lib/mock/f41-build-side-1-2811082-32926/root/chroot_tmpdir/scmroot/coin-or-Cbc'...
$ git fetch origin 669758bd5f8fab4ecc584cb1358a454c6fd5a684:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-Cbc
 * [new ref]         669758bd5f8fab4ecc584cb1358a454c6fd5a684 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 669758b Version 2.10.12