explicitly convert to list otherwise sort will not work.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@29959 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/CMFCategory/CategoryTool.py

@@ -167,7 +167,7 @@ class CategoryTool( UniqueObject, Folder, Base ):
         result = self.objectIds()
       else:
         # XXX Incompatible with ERP5Type per portal type categories
-        result = context._categories[:]
+        result = list(context._categories[:])
       if sort:
         result.sort()
       return result