$ git clone -n https://src.fedoraproject.org/rpms/R-yaml.git /var/lib/mock/f31-build-51034-27471/root/chroot_tmpdir/scmroot/R-yaml
Cloning into '/var/lib/mock/f31-build-51034-27471/root/chroot_tmpdir/scmroot/R-yaml'...
$ git reset --hard e22b0d30dd9c1bf943cda69496d31c8860fff931
HEAD is now at e22b0d3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild