[xsl] xml -> htmlhelp and character 8220

[Allin Cottrell <cottrell@xxxxxxx>]

Hello,

I recently updated docbook-xsl from version 1.59.1 to 1.67.0, and I 
find I'm not able to produce htmlhelp output any more.  This is 
working from docbook-xml source, transforming using htmlhelp.xsl 
with saxon 6.5.3.  Previously the transformation went through fine, 
but now I'm getting the error...

Writing toc.hhc
Error at xsl:copy-of on line 338 of 
file:/usr/share/sgml/docbook-xsl/html/chunker.xsl:
  Output character not available in this encoding (decimal 8220)

There's no literal “ in the xml source: there all we have is
<quote>stuff</quote>.

Any ideas what's wrong here?

--
Allin Cottrell
Department of Economics
Wake Forest University, NC