my $ncall = $nref->call;
next if @list && !grep $ncall =~ m|$_|, @list;
my $call = $nref->user_call;
- my $l = join ',', (map {my $ref = Route::Node::get($_); $ref ? ($ref->user_call) : ("$_?")} sort @{$nref->parent});
+ my $l = join ',', (map {my $ref = Route::Node::get($_); $ref ? ($ref->user_call) : ("$_?")} sort $nref->parents);
push @out, "$call->$l";
}