Comment 3 for bug 1076803

I think this is working for the default template, but can miss templates that try to display other fields from the list. Instead of merging title and due_date into your "id_list", try ui_list.dump_with_keys() (which is what happens in the normal case when you don't supply an explicit list) and filter that list based on your selected rows.

The dump_with_keys will get you every field, including title and due_date.