anchor.diff:                            assignment_text: h(assignment.short_identifier)),
                           polymorphic_url([assignment, target_controller],
                                           action: target_action),
  -                        title: assignment.description,
  -                        class: 'title' %>
  +                        title: assignment.description %>
             <% else %>
               <%= link_to h(assignment.short_identifier),
                           polymorphic_url([assignment, target_controller],
                                           action: target_action),
  -                        title: assignment.description,
  -                        class: 'title' %>
  +                        title: assignment.description %>
             <% end %>
           <% # student user, so show only non-hidden assignments
              else %>
  
positive.code:                         { controller: 'assignments',
                            action: 'student_interface',
                            id: assignment.id },
                          title: assignment.description,
                          class: 'title' %>
            <% end %>
          </li>
        <% elsif @current_user.ta? %>
  
negative.code:                         { controller: 'assignments',
                            action: 'edit',
                            id: assignment.id },
                          title: assignment.description %>
            <% else %>
              <%= link_to h(assignment.short_identifier),
                          { controller: 'assignments',
                            action: 'edit',
                            id: assignment.id },
                          title: assignment.description %>
            <% end %>
          </li>
        <% end %>
  