[FIX] product: context in _select_seller

It should contain 'partner_id' instead of 'partner' as it was the case
previously

addons/product/product.py

@@ -470,7 +470,7 @@ class product_template(osv.osv):
         if context is None:
             context = {}
         res = {}
-        partner = context.get('partner')
+        partner = context.get('partner_id')
         minimal_quantity = context.get('quantity', 0.0)
         date = context.get('date', time.strftime(DEFAULT_SERVER_DATE_FORMAT))
         for product in self.browse(cr, uid, ids, context=context):

addons/product/test/product_pricelist.yml

@@ -51,7 +51,7 @@
 -
   !python {model: product.product}: |
     from openerp.tools import float_compare
-    context.update({'quantity':1, 'date': False, 'partner': ref('base.res_partner_4')})
+    context.update({'quantity':1, 'date': False, 'partner_id': ref('base.res_partner_4')})
     product = self.browse(cr, uid, ref("product_product_6"), context=context)
     assert float_compare(product.seller_price, 790, precision_digits=2) == 0, "Wrong cost price: LCD Monitor."
 -