Nameserver13 test specification specifies that the query is DNSKEY:
Create a DNSKEY query for the Child Zone that is signed with 'DO' bit set to '1' and setting the buffer size to 512 bytes
But the implementation is a query for SOA:
my $p = $ns->query( $zone->name, q{SOA}, { usevc => 0, fallback => 0, edns_details => { version => 0, do => 1, size => 512 } } );
Which one is correct?