[Dbix-class] +select problem with 0.7006

[Will Hawes]

>From the docs and a quick chat on IRC I understand that the following:

package My::Schema::Order_Product;
...
__PACKAGE__->table('order_product');
__PACKAGE__->add_columns(qw/ id product quantity unitprice /);

...

my $rs = $c->model('Order_Product')->search(
  {},
  {
    +select => ['quantity * unitprice'],
    +as => ['line_total']
  }
);

should cause DBIC to generate something like:

SELECT id, product, quantity, unitprice, quantity * unitprice FROM
order_product me

It's only giving me the following though:

SELECT quantity * unitprice FROM order_product me

The only way I can get the other columns is to add them manually using
the "select" attribute.

What have I done wrong here?