Index: kernel/db/db_tag_processor.php
===================================================================
--- kernel/db/db_tag_processor.php	(revision 14590)
+++ kernel/db/db_tag_processor.php	(working copy)
@@ -2089,6 +2089,10 @@
 			$ret .= '['.$params['type'].']';
 		}
 
+		if (array_key_exists('as_preg', $params) && $params['as_preg']) {
+			$ret = preg_quote($ret, '/');
+		}
+		
 		return $ret;
 	}