$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Vol.git /var/lib/mock/f31-build-57342-28321/root/chroot_tmpdir/scmroot/coin-or-Vol
Cloning into '/var/lib/mock/f31-build-57342-28321/root/chroot_tmpdir/scmroot/coin-or-Vol'...
$ git reset --hard 294d121dd91d483bff3f6436004be7c0de3f1c5e
HEAD is now at 294d121 Update to latest upstream release (bz 1680236).