$ git clone -n https://src.fedoraproject.org/rpms/R-gmp.git /var/lib/mock/f31-build-73965-31055/root/chroot_tmpdir/scmroot/R-gmp
Cloning into '/var/lib/mock/f31-build-73965-31055/root/chroot_tmpdir/scmroot/R-gmp'...
$ git reset --hard 9b1a73ff9dfa995fb764e097d5e1d7c674741a35
HEAD is now at 9b1a73f - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild