refentry.pagebreak doesn't prevents pagebreak for refentrys

According to the Stylesheet docs[1] if you set the
refentry.pagebreak parameter to zero there will be no page
break generated between refentrys.

As far as I can see, this doesn't work. According to Bob
Stayton:
"I consider this is a bug, since the expectation is that the
parameter should join the refentries together. The
parameter needs to be applied earlier in the template, to
create a single page sequence for the reference element so
that the individual refentry elements are not in their
individual page-sequences."

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[1]
http://docbook.sourceforge.net/release/xsl/current/doc/fo/refentry.pagebreak.html