apply-templates select and current() question

I'm trying to implement citation processing where citations basically 
treated as if they were footnotes; rendered and numbered the same.
So I created a union template in its own mode like so, which is close 
to working correctly.
  <xsl:template match="db:footnote | db:citation" mode="footcite">
    <xsl:variable name="incr">
      <xsl:number level="any" count="db:footnote | 
db:citation[not(../db:footnote)]"/>
    </xsl:variable>
    <p id="fn{$incr}">
      <a href="#fnm{$incr}" class="footnote-anchor">
        <xsl:value-of select="$incr"/>
      </a>
      <xsl:text>. &#xa0;</xsl:text>
      <xsl:apply-templates select="if (current() = db:footnote) then * 
else ."/>
    </p>
  </xsl:template>

The above select statement is supposed to:

	-	if current() is db:citation apply-templates to itself in the default 
mode
	-	if current() is db:footnote, then just do the standard 
apply-templates to the children
However, for the latter I end up with this:

2.  [1]

.. which tells me that even though the current() for the this element 
is in fact db:footnote, the select is "."
If I change the select statement to just "*", then that part gets 
rendered correctly.
If I change the statement to "if (../db:footnote) then * else ." then 
it also seems to work (there's one problem that I think is unrelated).
So what's going on??

Bruce


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