code macros do not work in included document

What steps will reproduce the problem?
1. create w book.wiki page with content : 

    {{include document="introduction.wiki" syntax="confluence/1.0"  /}}

2. create introdution.wiki in confluence syntax :

{important}This document is a work in progress and will get richer over 
time.{important}
{code}exo:service=cache,name=CacheName{code}

3.  build wih maven

What is the expected output? What do you see instead?

The build fails. I get :

ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Could not create destination file 
java.lang.UnsupportedOperationException: todo

What version of the product are you using? On what operating system?

Wikibook 0.9.15

Please provide any additional information below.

Original issue reported on code.google.com by patrice....@gmail.com on 27 Jun 2010 at 7:52

henriqueamorim83 / wikbook

code macros do not work in included document #1