fix warning message that sometimes broke webdav

inc/MDB2/Driver/sqlite.php

@@ -926,7 +926,7 @@ class MDB2_Result_sqlite extends MDB2_Result_Common
             if ($object_class == 'stdClass') {
                 $row = (object) $row;
             } else {
-                $row = &new $object_class($row);
+                $row = new $object_class($row);
             }
         }
         ++$this->rownum;