Fix the conditional about portal_activities.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@2222 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ZSQLCatalog/dtml/catalogHotReindexing.dtml

@@ -7,7 +7,7 @@ Hot Reindexing allows you to recreate a new SQL Catalog without stopping your sy
 This requires at least two SQL Catalogs.
 </p>
 
-<dtml-if portal_activities>
+<dtml-if "_.hasattr(getPortalObject(), 'portal_activities')">
 <p class="form-help">
 Note that hot reindexing might not be finished even when you get a successful response,
 because portal_activities delays the real operations. You can check the real state in properties.