$ git clone -n https://src.fedoraproject.org/rpms/mlpack.git /var/lib/mock/f31-build-110870-34084/root/chroot_tmpdir/scmroot/mlpack
Cloning into '/var/lib/mock/f31-build-110870-34084/root/chroot_tmpdir/scmroot/mlpack'...
$ git reset --hard 23b2cc1498a37e2e19a7959dd22b4ca89fc0019c
HEAD is now at 23b2cc1 Update sources.