TOC broken after chunking

Hi,
i try to generate a webhelp documentation.
the output should be chunked into different folders and filenames.
However, there is a bug open since 2011:
https://sourceforge.net/p/docbook/bugs/1173/
So i can't use it.

Is there any known workaround for that problem?

-- 
Kind Regards,
Dennis Rautenberg