xml : unique elements?

Hello,

I have this class where I'm generating an ivy configuration file. This version works except if I add the conf="" attribute to the dependency element like , it seems to automatically filter out duplicates. So without it, I get 12+ dependencies, with it, I only get three because there are three unique conf values. Is this the desired behavior? How can I make sure all of the dependencies will be included?

PS. Oddly, if I change the name of conf to cx, it outputs all dependencies, but obviously i can't run it in ivy.

thx,
Mike

/// class
class IvyXml(config:WebAppConfig) {

val ivy =

*,!sources,!javadoc" defaultconf="default">
{for(dp <- config.dependencies) yield

}

def saveToFile(path:String) = {
println("ivy: " + ivy)
XML.save(path, ivy, "UTF-8", true, null)
}
}