Index: nodereference_url.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/nodereference_url/nodereference_url.module,v
retrieving revision 1.17
diff -u -r1.17 nodereference_url.module
--- nodereference_url.module	7 Jan 2010 01:24:36 -0000	1.17
+++ nodereference_url.module	7 Jan 2010 04:54:57 -0000
@@ -128,6 +128,10 @@
           $link['query'] = 'destination='. urlencode(drupal_get_path_alias('node/'. $node->nid));
         }
       }
+      if (module_exists('og') && $group_node = og_determine_context_get_group($node)) {
+        $link['query'] = isset($link['query']) ? $link['query'] . '&' : '';
+        $link['query'] .= 'gids[]=' . $group_node->nid;
+      }
     }
   }