Index: trunk/quest-core-tasktrees/src/main/java/de/ugoe/cs/quest/tasktrees/treeifc/TaskTreeNode.java
===================================================================
--- trunk/quest-core-tasktrees/src/main/java/de/ugoe/cs/quest/tasktrees/treeifc/TaskTreeNode.java	(revision 461)
+++ trunk/quest-core-tasktrees/src/main/java/de/ugoe/cs/quest/tasktrees/treeifc/TaskTreeNode.java	(revision 464)
@@ -19,5 +19,5 @@
  */
 //-------------------------------------------------------------------------------------------------
-public interface TaskTreeNode
+public interface TaskTreeNode extends Cloneable
 {
   //-----------------------------------------------------------------------------------------------