[FIX] purchase_mrp: receive kits with multiple UOM

- Create 3 products A, B & C
  A is in Units
  B is in kg
  C is in m
- Create a BOM kit for A using 1 kg of B and 1 m of C
- Create a PO for A, validate
- Receive the picking

An error is raised: "Conversion from Product UoM ... to Default UoM ...
is not possible as they both belong to different Category!."

It happens because `_compute_qty_received` incorrectly converts
quantities.

The computation of the quantity received for kits is done in 2 steps:
first we compute the quantity the same way we do it for a regular
product, then we overwrite the quantity with the value computed for
kits.

We can compute the quantity correctly at once by calling `super` only on
lines which are not kits.

opw-2302807

closes odoo/odoo#55047

X-original-commit: b82f71dac9452de9c1e16cde552fe260fec3c262
Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/addons/purchase_mrp/models/purchase.py b/addons/purchase_mrp/models/purchase.py
index 5fcdda4ed24..6256516cfe6 100644
--- a/addons/purchase_mrp/models/purchase.py
+++ b/addons/purchase_mrp/models/purchase.py
@@ -43,7 +43,7 @@ class PurchaseOrderLine(models.Model):
     _inherit = 'purchase.order.line'
 
     def _compute_qty_received(self):
-        super(PurchaseOrderLine, self)._compute_qty_received()
+        kit_lines = self.env['purchase.order.line']
         for line in self:
             if line.qty_received_method == 'stock_moves' and line.move_ids:
                 kit_bom = self.env['mrp.bom']._bom_find(product=line.product_id, company_id=line.company_id.id, bom_type='phantom')
@@ -55,6 +55,8 @@ class PurchaseOrderLine(models.Model):
                         'outgoing_moves': lambda m: m.location_id.usage != 'supplier' and m.to_refund
                     }
                     line.qty_received = moves._compute_kit_quantities(line.product_id, order_qty, kit_bom, filters)
+                    kit_lines += line
+        super(PurchaseOrderLine, self - kit_lines)._compute_qty_received()
 
     def _get_upstream_documents_and_responsibles(self, visited):
         return [(self.order_id, self.order_id.user_id, visited)]