> otherwise <xsl:number/> was producing "" 

T the count attribute will make a difference if the current node isn't
an fm:DATA. You don't say what the current node is, the XSLT 1 spec was
a little fuzzy (to say the least) on edge cases of xsl:number whether it
should produce 0 or "" or 1 or ... (partly because it referenced a java
spec that then changed) XSLT2's specification of xsl:number is much more
precise and self contained.

David

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