Index: lams_central/src/java/org/lamsfoundation/lams/authoring/service/AuthoringService.java
===================================================================
RCS file: /usr/local/cvsroot/lams_central/src/java/org/lamsfoundation/lams/authoring/service/AuthoringService.java,v
diff -u -r1.91 -r1.92
--- lams_central/src/java/org/lamsfoundation/lams/authoring/service/AuthoringService.java	4 Oct 2010 15:27:03 -0000	1.91
+++ lams_central/src/java/org/lamsfoundation/lams/authoring/service/AuthoringService.java	13 Feb 2012 12:29:30 -0000	1.92
@@ -693,9 +693,11 @@
 			transitionDAO.update(toTransition);
 
 		} else if (toTransition != null && fromTransition == null) {
+		    	toTransition.getFromActivity().setTransitionFrom(null);
 			design.getTransitions().remove(toTransition);
 		} else if (toTransition == null && fromTransition != null) {
 			design.setFirstActivity(fromTransition.getToActivity());
+			fromTransition.getToActivity().setTransitionTo(null);
 			design.getTransitions().remove(fromTransition);
 		}