Index: branches/5.2.x/core/units/helpers/csv_helper.php
===================================================================
diff -u -N -r14244 -r14585
--- branches/5.2.x/core/units/helpers/csv_helper.php	(.../csv_helper.php)	(revision 14244)
+++ branches/5.2.x/core/units/helpers/csv_helper.php	(.../csv_helper.php)	(revision 14585)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: csv_helper.php 14244 2011-03-16 20:53:41Z alex $
+* @version	$Id: csv_helper.php 14585 2011-09-24 12:04:17Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -65,7 +65,7 @@
 
 			$file = fopen($export_data['file_name'], $first_step ? 'w' : 'a');
 
-			$prefix_elems = split('\.|_', $export_data['prefix']);
+			$prefix_elems = preg_split('/\.|_/', $export_data['prefix'], 2);
 			$grids = $this->Application->getUnitOption($prefix_elems[0], 'Grids');
 			$grid_config = $grids[ $export_data['grid'] ]['Fields'];
 
@@ -219,7 +219,7 @@
 			$headers = fgetcsv($file, 8192, $import_data['delimiter'], $import_data['enclosure']);
 			fclose($file);
 
-			$prefix_elems = split('\.|_', $import_data['prefix']);
+			$prefix_elems = preg_split('/\.|_/', $import_data['prefix'], 2);
 			$grids = $this->Application->getUnitOption($prefix_elems[0], 'Grids');
 			$grid_config = $grids[ $import_data['grid'] ]['Fields'];
 
@@ -267,7 +267,7 @@
 		function ImportStep()
 		{
 			$import_data = unserialize($this->Application->RecallVar('import_data'));
-			$prefix_elems = split('\.|_', $import_data['prefix']);
+			$prefix_elems = preg_split('/\.|_/', $import_data['prefix'], 2);
 
 			$object =& $this->Application->recallObject($prefix_elems[0].'.-csvimport', $prefix_elems[0], Array('skip_autoload' => true, 'populate_ml_fields' => true));
 			/* @var $object kDBItem */