[dlpolyselect] check g is irreducible too
[dlpolyselect] check g is irreducible too

mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs