$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Couenne.git /var/lib/mock/f40-build-788603-135267/root/chroot_tmpdir/scmroot/coin-or-Couenne
Cloning into '/var/lib/mock/f40-build-788603-135267/root/chroot_tmpdir/scmroot/coin-or-Couenne'...
$ git fetch origin 281029b1ea4f927a4b1123f7f0aafcba86f89b80:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-Couenne
 * [new ref]         281029b1ea4f927a4b1123f7f0aafcba86f89b80 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 281029b Build with asl instead of mp