Index: branches/5.0.x/core/kernel/db/dbitem.php
===================================================================
diff -u -N -r13598 -r13603
--- branches/5.0.x/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 13598)
+++ branches/5.0.x/core/kernel/db/dbitem.php	(.../dbitem.php)	(revision 13603)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: dbitem.php 13598 2010-05-23 09:44:10Z alex $
+* @version	$Id: dbitem.php 13603 2010-05-23 09:54:28Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -917,6 +917,12 @@
 		if ($this->mode != 't') {
 			$this->Application->resetCounters($this->TableName);
 		}
+
+		if ($this->IsTempTable() && ($this->Application->GetTopmostPrefix($this->Prefix) != $this->Prefix)) {
+			// temp table + subitem = set negative id
+			$this->setTempID();
+		}
+
 		$this->raiseEvent('OnAfterItemCreate');
 		$this->Loaded = true;
 
@@ -1288,15 +1294,7 @@
 			$cdata->SetDBField($ml_formatter->LangFieldName('cust_'.$custom_id, $force_primary), $this->GetDBField('cust_'.$custom_name));
 		}
 
-		if ($cdata->isLoaded()) {
-			$ret = $cdata->Update();
-		}
-		else {
-			 $ret = $cdata->Create();
-			 if ($cdata->mode == 't') $cdata->setTempID();
-		}
-
-		return $ret;
+		return $cdata->isLoaded() ? $cdata->Update() : $cdata->Create();
 	}
 
 	/**