Do not permit create Slave Instances with same title also.

master/bt5/vifib_web/SkinTemplateItem/portal_skins/vifib_hosting/WebSection_addSelectedSoftwareProductToShoppingCart.xml

@@ -64,7 +64,7 @@ if not service_title:\n
                         keep_items={\'portal_status_message\':context.Base_translateString("You have to provide Service Title.")})\n
 \n
 software_instance_list = context.portal_catalog(\n
-  portal_type=\'Software Instance\',\n
+  portal_type=[\'Software Instance\', \'Slave Instance\'],\n
   select_expression=\'title\',\n
   title={\'query\': service_title, \'key\': \'ExactMatch\'}\n
 )\n

master/bt5/vifib_web/bt/revision

-298
+299
\ No newline at end of file