Index: trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ITaskInstanceList.java
===================================================================
--- trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ITaskInstanceList.java	(revision 1343)
+++ trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ITaskInstanceList.java	(revision 1350)
@@ -25,5 +25,5 @@
  * @author Patrick Harms
  */
-public interface ITaskInstanceList extends Serializable, Iterable<ITaskInstance> {
+public interface ITaskInstanceList extends Cloneable, Serializable, Iterable<ITaskInstance> {
 
     /**