Index: lams_central/src/java/org/lamsfoundation/lams/authoring/service/AuthoringService.java
===================================================================
diff -u -r8bf57be91e0c9170b919de02f9d7b6c8f22c780e -rd882a2bf9ec6f6f26d9103b7be0aebb95ff23d2c
--- lams_central/src/java/org/lamsfoundation/lams/authoring/service/AuthoringService.java	(.../AuthoringService.java)	(revision 8bf57be91e0c9170b919de02f9d7b6c8f22c780e)
+++ lams_central/src/java/org/lamsfoundation/lams/authoring/service/AuthoringService.java	(.../AuthoringService.java)	(revision d882a2bf9ec6f6f26d9103b7be0aebb95ff23d2c)
@@ -1014,6 +1014,7 @@
 	updateDesignTransitions(designToImport, mainDesign, newActivities, uiidOffset);
 	mainDesign.setMaxID(LearningDesign.addOffset(designToImport.getMaxID(), uiidOffset));
 	mainDesign.setValidDesign(Boolean.FALSE);
+	mainDesign.setLastModifiedDateTime(new Date());
 	learningDesignDAO.update(mainDesign);
 
 	insertCompetenceMappings(mainDesign.getCompetences(), designToImport.getCompetences(), newActivities);