Index: trunk/core/units/groups/groups_config.php
===================================================================
diff -u -N -r7702 -r7855
--- trunk/core/units/groups/groups_config.php	(.../groups_config.php)	(revision 7702)
+++ trunk/core/units/groups/groups_config.php	(.../groups_config.php)	(revision 7855)
@@ -71,7 +71,7 @@
 											),
 
 					'Fields' => Array (
-										'GroupId' => Array(),
+										'GroupId' => Array('type' => 'int', 'not_null' => 1, 'default' => 0),
 										'Name' => Array('type' => 'string', 'not_null' => '1', 'required' => 1, 'default' => ''),
 										'Description' => Array('type' => 'string','default' => ''),
 										'CreatedOn' => Array('type' => 'double', 'formatter' => 'kDateFormatter', 'not_null' => '1','default' => '#NOW#'),