[FIX] purchase: select suppliers of variant

When a PO is created from a procurement, the field product_id of the
supplierinfo is not taken into account when the possible vendors are
chosen. For example, let's take the following situation:
- A product with 2 variants (color White and Black), route MTO
- Two vendors are created, one for color white, the other for color
  black
- When a SO containing the 2 variants is created, only one PO for the
  same vendor is created for both products.

With this fix, 2 POs will be created, linking the appropriate vendor and
variant.

opw-657362

0 files changed, 0 insertions, 0 deletions