fix template

Author: domdinicola

src/country_workspace/workspaces/templates/workspace/asyncjob/change_form.html

@@ -36,7 +36,7 @@
             <td>{{ original.file }}</td>
         </tr>
         {% if perms.app_name.change_model_name_lower_cased %}
-            {% if original.task_info.error %}
+            {% if original and original.task_info.error %}
                 <tr>
                     <th>Error</th>
                     <td>{{ original.task_info.error }}</td>