[Catalyst] $row->copy causing exit from controller(!)

[Paul Makepeace]

I'm seeing something exceedingly odd: copying data causing a premature
return from the controller, like a detach(),

        foreach my $table (@chart_related_tables) {
          my $rs = $ds->resultset($table);
          warn "copying $table for ", $new_chart->uid;
          for my $row ($rs->search({web_chart_spec_uid => $chart->uid})) {
            warn "..row ", $row->web_chart_spec_uid, $row;
            $row->copy({web_chart_spec_uid => $new_chart->uid});  # XXX
          }
          #$_->copy({web_chart_spec_uid => $new_chart->uid})
              #for $rs->search({web_chart_spec_uid => $chart->uid});
          die "cloned", $new_chart->uid;
        }

There's no further execution past the line marked XXX: the template is
rendered from that point on. The die is never called.

I have a feeling it's something to do with has_many

Chart:
__PACKAGE__->has_many(chartview_company => 'IDL::Schema::ChartCompany'
=> 'web_chart_spec_uid', {cascade_delete => 0});

If I exclude from @chart_related_tables ChartCompany it works.

**

I realize there's scads of debug I could provide but wanted to check
first this wasn't something someone had run into before. If not, what
kind of debug can I provide?

DBIC $VERSION = '0.08009';
Catalyst 5.7012

Paul