$ git clone -n https://src.fedoraproject.org/rpms/R-yaml.git /var/lib/mock/f33-build-339073-58625/root/chroot_tmpdir/scmroot/R-yaml
Cloning into '/var/lib/mock/f33-build-339073-58625/root/chroot_tmpdir/scmroot/R-yaml'...
$ git reset --hard fc4d3d2aa6eb2d3cbf26d691684a4e02794416d6
HEAD is now at fc4d3d2 - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild