$ git clone -n https://src.fedoraproject.org/rpms/R.git /var/lib/mock/f31-build-51208-27496/root/chroot_tmpdir/scmroot/R
Cloning into '/var/lib/mock/f31-build-51208-27496/root/chroot_tmpdir/scmroot/R'...
$ git reset --hard 290075c5e94b7dee49d892b4c6c8cc44d66bedbc
HEAD is now at 290075c Add R()-namespaced Provides for builtin libraries.