Index: og.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/og/Attic/og.module,v
retrieving revision 1.628.4.25
diff -u -p -r1.628.4.25 og.module
--- og.module	17 Sep 2009 13:14:38 -0000	1.628.4.25
+++ og.module	23 Sep 2009 21:44:03 -0000
@@ -1208,11 +1208,13 @@ function og_nodeapi(&$node, $op, $teaser
       }
 
       // Ensure that the number of groups specified as node audience do not exceed group limit
-      $og_groups_filtered = array_filter($node->og_groups);
-      $max_number = variable_get('og_max_groups_' . $node->type,'');
-      if ($og_groups_filtered && $max_number) {
-        if (count($og_groups_filtered) > $max_number && !user_access('administer nodes')) {
-          form_set_error('og_groups', format_plural($max_number, "The audience for this post may not exceed !max_number group.", "The audience for this post may not exceed !max_number groups.", array('!max_number' => $max_number)));
+      if (isset($node->og_groups)) {
+        $og_groups_filtered = array_filter($node->og_groups);
+        $max_number = variable_get('og_max_groups_' . $node->type,'');
+        if ($og_groups_filtered && $max_number) {
+          if (count($og_groups_filtered) > $max_number && !user_access('administer nodes')) {
+            form_set_error('og_groups', format_plural($max_number, "The audience for this post may not exceed !max_number group.", "The audience for this post may not exceed !max_number groups.", array('!max_number' => $max_number)));
+          }
         }
       }
       break;