- $self->{__partpriv_taxkey_information} ||= { };
- my $tk_info = $self->{__partpriv_taxkey_information};
-
- $tk_info->{$taxzone} ||= { };
- $tk_info->{$taxzone}->{$is_sales} ||= { };
+ $tk_info->{$self->id} //= {};
+ $tk_info->{$self->id}->{$taxzone} //= { };
+ my $cache = $tk_info->{$self->id}->{$taxzone}->{$is_sales} //= { };