question:maven-genapp-plugin\plugin.jelly

["W. Sean Hennessy" <sh...@goldenhourdata.com>]

given that one modifies the 
#template.properties
maven.genapp.repackage=${src-dir-nm},${tst-dir-nm}

and that if one should insert a 
     <ant:echoproperties destfile="maven-genapp.runtime.properties" failonerror="false" />
to expose said properties such as
src-dir-nm=alt.srcdirnm
 
why is it that when plugin.jelly gets around to parsing the "maven.genapp.repackage" value pair which references said
property..
<!-- plugin.jelly:125 -->
      <u:tokenize var="maven.genapp.repackage.split" delim=",">${maven.genapp.repackage}</u:tokenize>
it is not available as an expanded property as one would expect?
 
returns ${src-dir-nm} and not "alt.srcdirnm"