[docbook-apps] Hyphenation in component titles (XSL-FO)

[Sören Kress <sklists at gmx dot de>]

Hi,

some days ago I asked some things about hyphenation in component titles. I 
tried to turn hyphenation on by setting (as found in the docs and as 
recommended by replies to my previous post):

<xsl:param name="hyphenate">true</xsl:param>

And also:

<xsl:attribute-set name="component.title.properties">
  <xsl:attribute name="hyphenate">true</xsl:attribute>
</xsl:attribute-set>

But that did not work for chapter titles. I found the following in 
fo/component.xsl (docbook-xsl-1.67.0):

  <fo:block keep-with-next.within-column="always"
            space-before.optimum="{$body.font.master}pt"
            space-before.minimum="{$body.font.master * 0.8}pt"
            space-before.maximum="{$body.font.master * 1.2}pt"
            hyphenate="false"
            xsl:use-attribute-sets="component.title.properties">

Is it possible to overwrite the hyphenate="false" with xsl:use-attribute-sets? 

As it does not work for me
- what's wrong with my customization?
- is anything wrong with my XML parser? (I'm using Xerces-J 2.6.2)
- or will it generally not work?

Thanks for any advice
Sören