full nested models errors listing


I am using Rails 2.3 new nested model forms.
Let's say I want to create a book, and add 2 authors to this book.

Validation happens on the author name, and both the names I've filled
in do no validate.

When I use the helper "full_error_messages", I only get 1 of the
authors validation error, not both ...

Is there a way to have the full listing of the nested models errors ?