Index: trunk/core/kernel/db/dbitem.php
===================================================================
diff -u -r2378 -r2460
--- trunk/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 2378)
+++ trunk/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 2460)
@@ -502,8 +502,8 @@
 			
 			$sql = 'SELECT COUNT(*) FROM %s WHERE ('.implode(') AND (',$where).') AND ('.$this->IDField.' <> '.(int)$this->ID.')';
 			
-			$res_temp = $this->Conn->GetOne( sprintf($sql, $this->TableName ) );
-			$res_live = $this->Conn->GetOne( sprintf($sql, kTempTablesHandler::GetLiveName($this->TableName) ) );
+			$res_temp = $this->Conn->GetOne( str_replace('%s', $this->TableName, $sql) );
+			$res_live = $this->Conn->GetOne( str_replace('%s', kTempTablesHandler::GetLiveName($this->TableName), $sql) );
 			$res = ($res_temp == 0) && ($res_live == 0);
 			
 			if(!$res) $this->FieldErrors[$error_field]['pseudo'] = 'unique';