avoid double escapes

core/util.inc.php

@@ -46,6 +46,16 @@ function sql_escape($input) {
 	return $database->db->Quote($input);
 }
 
+/**
+ * Some functions require a callback function for escaping,
+ * but we might not want to alter the data
+ *
+ * @retval string
+ */
+function no_escape($input) {
+	return $input;
+}
+
 /**
  * Turn a human readable filesize into an integer, eg 1KB -> 1024
  *