anchor.diff:        /
         <%= raw(f.text_field :repository_folder,
                              onchange: 'set_onbeforeunload(true);',
  +                           size: 31,
                              required: true) %>
       </div>
   
  
positive.code:     <div>
        <%= raw(f.label :short_identifier,
                        t('assignment.short_identifier').html_safe ) %>
        <% if @assignment.id.nil? %>
          <%= raw(f.text_field :short_identifier,
                               id: 'short_identifier',
                               onchange: 'set_onbeforeunload(true);',
                               maxlength: 30,
                               required: true) %>
        <% else %>
          <%= raw(f.text_field :short_identifier,
                               id: 'short_identifier',
                               onchange: 'set_onbeforeunload(true);',
                               maxlength: 30,
                               required: true) %>
        <% end %>
      </div>
  
      <div>
  
negative.code:       <%= text_field_tag 'assignment_due_date',
                           nil,
                           { onchange: 'set_onbeforeunload(true);',
                             size: 32,
                             required: true } %>
      </div>
  
  