$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Cbc.git /var/lib/mock/f40-build-793489-138985/root/chroot_tmpdir/scmroot/coin-or-Cbc
Cloning into '/var/lib/mock/f40-build-793489-138985/root/chroot_tmpdir/scmroot/coin-or-Cbc'...
$ git fetch origin d6483b6084d270ace2c9327575cdfb8c25421993:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-Cbc
 * [new ref]         d6483b6084d270ace2c9327575cdfb8c25421993 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6483b6 Version 2.10.11