N°2589 - Infinite loops when logging with a Contact having a non empty TagSet field

Add ListParameters to DBSearch for nested queries

core/dbsearch.class.php

@@ -1230,6 +1230,8 @@ abstract class DBSearch
 	 */
 	public abstract function GetCriteria();
 
+	public abstract function ListParameters();
+
     /**
      * Shortcut to add efficient IN condition
      *