BUILDARGS breaks the catmandu CLI command

[netsensei]

The CA.pm module contains this code:

sub BUILDARGS {
    my ($class, %args) = @_;

    my $field_list = delete $args{'field_list'};

    if ($field_list) {
        if (ref($field_list) eq 'ARRAY') {
            # If the module is called from another script
            $args{'_field_list'} = $field_list;
        } else {
            # If the module is called from a fix
            my @list = split(/,/, $field_list);
            my @fields = map { $_ =~ s/^\s+//; $_; } @list;
            $args{'_field_list'} = \@fields;
        }
    }
    return \%args;
}

But this actually breaks the command line option with this error on Perl 5.26.0

Reference found where even-sized list expected at /Users/matthiasvandermaesen/Workspace/Catmandu-CA/lib/Catmandu/Store/CA.pm line 22.
Oops! Missing required arguments: password, url, username at /Users/matthiasvandermaesen/.plenv/versions/5.26.0/lib/perl5/site_perl/5.26.0/Catmandu/Env.pm line 142.