anchor.diff:  
         </div>
   
  +      <div class="form_item select_control">
  +        <%= f.label :issue_id %>
  +        <%= f.select(:issue_id, @issues, { include_blank: '-' }) %>
  +      </div>
  +
       </div>
   
       <div class="pure-u-1 pure-u-md-2-24"></div>
  
positive.code: 
          </div>
  
        </div><div class="form_block">
  
          <div class="form_item">
  
  
negative.code:         <%= f.file_field :header_image %>
        </div>
  
        <div class="form_item select_control">
          <%= f.label :scope_id %>
          <%= f.select(:scope_id, @scopes, { include_blank: '-' }) %>
        </div>
  
        <h3><%= t('.duration') %></h3>
  