Index: lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/util/NbWebUtil.java
===================================================================
diff -u -r89ae2d0b15d307b9dd4c20da0577481807524ce2 -rc6d3a6138de6a679f5111be312de0b591c84325e
--- lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/util/NbWebUtil.java	(.../NbWebUtil.java)	(revision 89ae2d0b15d307b9dd4c20da0577481807524ce2)
+++ lams_tool_nb/src/java/org/lamsfoundation/lams/tool/noticeboard/util/NbWebUtil.java	(.../NbWebUtil.java)	(revision c6d3a6138de6a679f5111be312de0b591c84325e)
@@ -63,6 +63,7 @@
 	 	public static void cleanAuthoringSession(HttpServletRequest request)
 	 	{
 	 	    request.getSession().removeAttribute(NoticeboardConstants.TOOL_CONTENT_ID);
+	 	    request.getSession().removeAttribute(NoticeboardConstants.MODE);
 	 	    request.getSession().removeAttribute(NoticeboardConstants.ATTACHMENT_LIST);
 	 	    request.getSession().removeAttribute(NoticeboardConstants.DELETED_ATTACHMENT_LIST);
 	 	}