Fix TradeTemplate

src/main/scala/templates/TradeTemplate.scala

@@ -11,7 +11,7 @@ abstract class TradeTemplate(source: Node) extends RegiAmendTradeTemplate(source
         { /* Uses dictionary from PartyTemplate for identifier */ }
         <fpml:partyTradeIdentifier>
           <fpml:partyReference href={ parties("TradeRepository")._1 }/>
-          { val tradeId = get((source \\ "trade" \ "tradeHeader" \ "partyTradeIdentifier" \ "tradeId"))
+          { val tradeId = get((source \\ "trade" \ "tradeHeader" \ "partyTradeIdentifier" \ "tradeId")).mkString
             if (tradeId != "NONREF")
               <fpml:tradeId tradeIdScheme={ "REP" }>{ tradeId }</fpml:tradeId>
           }