anchor.diff:    <col width="250">
     <col width="300">
     <tbody>
  -    <% if conversations.reject { |c| c.is_unread?(current_user) && (c.receipts_for current_user).last.message.sender != current_user }.empty? %>
  +    <%# if conversations.reject { |c| c.is_unread?(current_user) && (c.receipts_for current_user).last.message.sender != current_user }.empty? %>
         <tr>
           <tr>
             <td><b>With</b></td>
  
positive.code:   <col width="250">
    <col width="300">
    <tbody>
      <% if conversations.reject { |c| c.is_read?(current_user) || (c.receipts_for current_user).last.message.sender == current_user }.empty? %>
        <tr>
          <tr>
            <td><b>With</b></td>
  
negative.code:           <% end %>
          <% end %>
        </tr>
      <%# else %>
        
      <%# end %>
    </tbody>
  </table>
  
  