Index: branches/5.2.x/core/kernel/utility/system_config.php
===================================================================
diff -u -N -r16435 -r16439
--- branches/5.2.x/core/kernel/utility/system_config.php	(.../system_config.php)	(revision 16435)
+++ branches/5.2.x/core/kernel/utility/system_config.php	(.../system_config.php)	(revision 16439)
@@ -149,7 +149,7 @@
 	public function getData()
 	{
 		if ( !$this->data ) {
-			$this->data = array_merge($this->getDefaults(), $this->parse());
+			$this->data = array_replace_recursive($this->getDefaults(), $this->parse());
 		}
 
 		return $this->data;