$ref = selectfirst_hashref_query($form, $dbh, $query, @values);
delete $ref->{salesman_id} if !$ref->{salesman_id};
- delete $ref->{payment_id} if $form->{payment_id};
+ delete $ref->{payment_id} if !$ref->{payment_id};
map { $form->{$_} = $ref->{$_} } keys %$ref;