Fix builder used by testDeliveryBuilderToSupportMultipleLines

This fixes unexpected divergences about 'specialise' category.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@41242 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/tests/testDeliveryBuilderToSupportMultipleLines.py

@@ -95,7 +95,8 @@ class TestNestedLineMixin(TestSaleInvoiceMixin):
       portal_type='Category Movement Group',
       collect_order_group='delivery',
       divergence_scope='category',
-      tested_property_list=('delivery_mode',
+      tested_property_list=('specialise',
+                            'delivery_mode',
                             'incoterm',
                             'source',
                             'destination',