Index: trunk/core/kernel/db/dbitem.php
===================================================================
diff -u -r3088 -r3162
--- trunk/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 3088)
+++ trunk/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 3162)
@@ -271,7 +271,7 @@
 			return $this->Clear();
 		}
 		
-		if( is_array($id) ) $this->setID( $this->FieldValues[$this->IDField] );
+		if( is_array($id) || isset($id_field_name) ) $this->setID( $this->FieldValues[$this->IDField] );
 
 		$this->UpdateFormattersSubFields(); // used for updating separate virtual date/time fields from DB timestamp (for example)