Fixed a bug in rendering the AD/Shepherd column in document list pages, when no AD is associated with a document. Fixes issue ietf-tools#1079.

 - Legacy-Id: 5916

Author: levkowetz

ietf/templates/idrfc/search_result_row.html

@@ -70,7 +70,7 @@
   {% endif %}
 </td>
 
-{% if ad_name != doc.ad.plain_name %}
+{% if ad_name == None or ad_name != doc.ad.plain_name %}
 <td class="ad">{{ doc.ad|default:"" }}<div class="search-text-shepherd">{{doc.shepherd|default:""}}</div></td>
 {% endif %}