[IMP] purchase: improved code

bzr revid: rha@tinyerp.com-20120622072905-ybxqziwrpemn0q5a

addons/purchase/purchase.py

@@ -706,12 +706,9 @@ class purchase_order_line(osv.osv):
         if not uom_id:
             return {'value': {'price_unit': price_unit or 0.0, 'name': name or '', 'notes': notes or'', 'product_uom' : uom_id or False}}
         context.update(uom_change=True)
-        res = self.onchange_product_id(cr, uid, ids, pricelist_id, product_id, qty, uom_id,
+        return self.onchange_product_id(cr, uid, ids, pricelist_id, product_id, qty, uom_id,
               partner_id, date_order=date_order, fiscal_position_id=fiscal_position_id, date_planned=date_planned,
               name=name, price_unit=price_unit, notes=notes, context=context)
-        if 'product_uom' in res['value']:
-            del res['value']['product_uom']
-        return res
 
     def _get_date_planned(self, cr, uid, supplier_info, date_order_str, context=None):
         """Return the datetime value to use as Schedule Date (``date_planned``) for