$ git clone -n https://src.fedoraproject.org/rpms/R-Rmpfr.git /var/lib/mock/f33-build-473614-63814/root/chroot_tmpdir/scmroot/R-Rmpfr
Cloning into '/var/lib/mock/f33-build-473614-63814/root/chroot_tmpdir/scmroot/R-Rmpfr'...
$ git reset --hard 08a241fb427dac4e90ea6f65d185d00e8c5bf896
HEAD is now at 08a241f - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild