anchor.diff:      <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 %>
  +      <%= raw(f.text_field :short_identifier,
  +                           id: 'short_identifier',
  +                           onchange: 'set_onbeforeunload(true);',
  +                           size: 32,
  +                           maxlength: 30,
  +                           required: true) %>      
       </div>
   
       <div>
  
positive.code:       /
        <%= raw(f.text_field :repository_folder,
                             onchange: 'set_onbeforeunload(true);',
                             required: true) %>
      </div>
  
  
negative.code:       <%= text_field_tag 'assignment_due_date',
                           nil,
                           { onchange: 'set_onbeforeunload(true);',
                             size: 32,
                             required: true } %>
      </div>
  
  