$ git clone -n https://src.fedoraproject.org/rpms/R-unix.git /var/lib/mock/f31-build-50874-27447/root/chroot_tmpdir/scmroot/R-unix
Cloning into '/var/lib/mock/f31-build-50874-27447/root/chroot_tmpdir/scmroot/R-unix'...
$ git reset --hard 338417abdcaf8f4e99f128806b44891e47661a56
HEAD is now at 338417a Update to latest version.