$ git clone -n https://src.fedoraproject.org/rpms/R-backports.git /var/lib/mock/f33-build-129271-40663/root/chroot_tmpdir/scmroot/R-backports
Cloning into '/var/lib/mock/f33-build-129271-40663/root/chroot_tmpdir/scmroot/R-backports'...
$ git reset --hard aa0b290e870d8f5b0de260862311ec349db53998
HEAD is now at aa0b290 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild