Index: samigo-services/src/java/org/sakaiproject/tool/assessment/facade/QuestionPoolFacadeQueries.java
===================================================================
--- samigo-services/src/java/org/sakaiproject/tool/assessment/facade/QuestionPoolFacadeQueries.java	(revision: 315980)
+++ samigo-services/src/java/org/sakaiproject/tool/assessment/facade/QuestionPoolFacadeQueries.java	(copia de trabajo)
@@ -1131,8 +1131,7 @@ public class QuestionPoolFacadeQueries
       }
 
       if (haveCommonRoot &&
-          (tree.poolLevel(sourceId) <=
-           tree.poolLevel(destId))) {
+          (tree.isDescendantOf(destId,sourceId))) {
         return; // Since otherwise it would cause an infinite loop.
         // We should revisit this.
       }