[FIX] purchase: Traceback and bad counter computation

On the product_template, the stat button to indicate the purchased quatity
is buggy in several ways.

1/ The states in the read_group domain have been mistaken with the states
   on the picking (clap, clap)
2/ The read_group is seeking the fields product_id and quantity. Too bad, on
   the model the name is unit_quantity (clap, clap)
3/ The displayed PO lines weren't chosen from a domain. So the computed quantity
   didn't correspond to the displayed lines from the button (small clap, clap)
4/ The action_purchase_line_product_tree linked to the stat button is selecting
   the PO lines where the product is the product id. Too bad, on the PO line
   this is a product.product and on the current object this is a product.template
   (epic clap, clap)

0 files changed, 0 insertions, 0 deletions