anchor.diff:  <div class="card shadow">
     <div class="full-width">
       <h3 class="pull-left"><%= old_lend_out.id %> - <%= old_lend_out.imt %></h3>
  -    <h3 class="pull-right"><%= old_lend_out.lendingTime %></h3>
  +    <% if old_lend_out.receiver.nil? %>
  +        <h3 class="pull-right"><%= old_lend_out.lendingTime %></h3>
  +    <% end %>
     </div>
     <div class="full-width">
       <div class="half-width">
  
positive.code:         <dd><%= old_lend_out.weigth %></dd>
          <dt>Raus von</dt>
          <dd><%= old_lend_out.lender %></dd>
        </dl>
      </div>
      <div class="half-width">
  
negative.code:       </dl>
      </div>
    </div>
  
    <div class="clearfix">
      <% if old_lend_out.receiver.nil? %>
          <nav>
            <ul class="nav nav-pills pull-right">
              <li><%= link_to "Zurücknehmen", returning_form_path(old_folder_instances: [old_lend_out.old_folder_instances.first]), class: "btn btn-primary" %></li>
            </ul>
          </nav>
      <% end %>
    </div>
  
  </div>