[FIX] purchase_stock: propagate supplier in multi steps

X-original-commit: 1e550be1cc968940dd5c263160b8cc38e9d4e72b
Part-of: odoo/odoo#83430

addons/purchase_stock/models/stock.py

@@ -89,6 +89,13 @@ class StockMove(models.Model):
         vals['purchase_line_id'] = self.purchase_line_id.id
         return vals
 
+    def _prepare_procurement_values(self):
+        proc_values = super()._prepare_procurement_values()
+        if self.restrict_partner_id:
+            proc_values['supplierinfo_name'] = self.restrict_partner_id
+            self.restrict_partner_id = False
+        return proc_values
+
     def _clean_merged(self):
         super(StockMove, self)._clean_merged()
         self.write({'created_purchase_line_id': False})

addons/purchase_stock/models/stock_rule.py

@@ -317,3 +317,12 @@ class StockRule(models.Model):
         res = super(StockRule, self)._push_prepare_move_copy_values(move_to_copy, new_date)
         res['purchase_line_id'] = None
         return res
+
+    def _get_stock_move_values(self, product_id, product_qty, product_uom, location_id, name, origin, company_id, values):
+        move_values = super()._get_stock_move_values(product_id, product_qty, product_uom, location_id, name, origin, company_id, values)
+        if values.get('supplierinfo_name'):
+            move_values['restrict_partner_id'] = values['supplierinfo_name'].id
+        elif values.get('supplierinfo_id'):
+            partner = values['supplierinfo_id'].name
+            move_values['restrict_partner_id'] = partner.id
+        return move_values