[lmi] Reg D group "illustration-assumption" page missing?

[Greg Chicares]

Vadim--Having once studied 'reg_d_group.xsl', can you remember why
this logical page:
        <!-- Define the Illustration Assumption Detail page. -->
        <fo:simple-page-master master-name="illustration-assumption">
seems never to print? AFAICT:
 - Old XSL-FO PDFs match new wxPdfDoc PDFs for 'sample2gpp'.
 - New PDFs have no code for this page.
 - Old PDFs do have code for this page, but seem never to print it.

My theory is that this is dead code. I see conditionals in the
template that depend on whether there is a supplemental report,
and on whether the PDF is a composite...

  <xsl:template name="illustration-assumption">
    <xsl:variable name="illustration_assumption_columns_raw">
...
    <xsl:variable name="illustration_assumption_columns" 
select="document('')//xsl:address@hidden'illustration_assumption_columns_raw']/column"/>
    <xsl:variable name="columns" 
select="$illustration_assumption_columns[not(@composite) or 
(boolean(@composite='1')=$is_composite)]"/>
...
    <fo:flow flow-name="xsl-region-body">
...
      <xsl:if test="not($has_supplemental_report)">
        <fo:block id="endofdoc"/>
      </xsl:if>
    </fo:flow>
  </xsl:template>

...but I tried all combinations of those two conditions and couldn't
get this page to print with the old XSL-FO system. Perhaps this XSL
fragment...

       [not(@composite)
        or (boolean(@composite='1')=$is_composite)
       ]

...expresses a condition that can never be satisfied?