$ git clone -n https://src.fedoraproject.org/rpms/R-RPostgres.git /var/lib/mock/f33-build-341497-58669/root/chroot_tmpdir/scmroot/R-RPostgres
Cloning into '/var/lib/mock/f33-build-341497-58669/root/chroot_tmpdir/scmroot/R-RPostgres'...
$ git reset --hard d8863e9e236b9df865d83514f7662c4088453942
HEAD is now at d8863e9 Initial commit (#1866143).