$ git clone -n https://src.fedoraproject.org/rpms/rpy.git /var/lib/mock/f40-build-804168-144450/root/chroot_tmpdir/scmroot/rpy
Cloning into '/var/lib/mock/f40-build-804168-144450/root/chroot_tmpdir/scmroot/rpy'...
$ git reset --hard 78f2a9012f2a7a3d290aba76cb8846219ca0ade0
HEAD is now at 78f2a90 Update to 3.5.15