anchor.diff:  <%--
          <h:outputText value="Anonymous" rendered="#{description.assessmentGradingId eq '-1'}" />
   --%>
  -       <h:commandLink title="#{msg.t_student}" action="studentScores" immediate="true" rendered="#{description.assessmentGradingId ne '-1'}">
  +       <h:commandLink title="#{msg.t_student}" action="studentScores" immediate="true" 
  +          rendered="#{description.submittedDate!=null && description.assessmentGradingId ne '-1'}">
            <h:outputText value="#{description.assessmentGradingId}" />
            <f:actionListener
               type="org.sakaiproject.tool.assessment.ui.listener.evaluation.TotalScoreUpdateListener" />
  
positive.code: <%--
        <h:outputText value="Anonymous" rendered="#{description.assessmentGradingId eq '-1'}" />
  --%>
         <h:commandLink title="#{msg.t_student}" action="studentScores" rendered="#{description.assessmentGradingId ne '-1'}" >
           <h:outputText value="#{description.assessmentGradingId}" />
           <f:actionListener
              type="org.sakaiproject.tool.assessment.ui.listener.evaluation.TotalScoreUpdateListener" />
  
negative.code: <%--
         <h:outputText value="Anonymous" rendered="#{description.assessmentGradingId eq '-1'}" />
  --%>
         <h:commandLink title="#{msg.t_student}" action="studentScores" immediate="true" 
            rendered="#{description.submittedDate!=null && description.assessmentGradingId ne '-1'}">
           <h:outputText value="#{description.assessmentGradingId}" />
           <f:actionListener
              type="org.sakaiproject.tool.assessment.ui.listener.evaluation.TotalScoreUpdateListener" />
  