Index: lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/web/actions/LearningAction.java
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/web/actions/LearningAction.java,v
diff -u -r1.5.2.5.2.1 -r1.5.2.5.2.2
--- lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/web/actions/LearningAction.java	28 Oct 2009 02:59:54 -0000	1.5.2.5.2.1
+++ lams_tool_mindmap/src/java/org/lamsfoundation/lams/tool/mindmap/web/actions/LearningAction.java	28 Oct 2009 03:02:21 -0000	1.5.2.5.2.2
@@ -936,7 +936,7 @@
 					mindmapService.updateEntry(entry);
 				}
 			} else {
-				if (!mindmap.isMultiUserMode())
+				if (!mindmap.isMultiUserMode() && learningForm.getMindmapContent() != null)
 					saveMindmapXML(mindmap, mindmapUser, learningForm
 							.getMindmapContent(), mindmapSession);
 			}