$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Couenne.git /var/lib/mock/f33-build-271296-51553/root/chroot_tmpdir/scmroot/coin-or-Couenne
Cloning into '/var/lib/mock/f33-build-271296-51553/root/chroot_tmpdir/scmroot/coin-or-Couenne'...
$ git reset --hard 991ce2d90003fca96f2a1dcd5c90936691600420
HEAD is now at 991ce2d Rebuild for nauty 2.7.1.