$ git clone -n https://src.fedoraproject.org/rpms/R-RPostgres.git /var/lib/mock/f33-build-617745-67418/root/chroot_tmpdir/scmroot/R-RPostgres
Cloning into '/var/lib/mock/f33-build-617745-67418/root/chroot_tmpdir/scmroot/R-RPostgres'...
$ git reset --hard 9d27dd2631fb14dec89748b6b3669cc6f8aed9a8
HEAD is now at 9d27dd2 Update to latest version.