edit

src/Database.php

@@ -1820,7 +1820,7 @@ class Database
                                     $m = 'group';
                                 }
 
-                                $show = Html::$m($vi, 'form-list', '', 'style="min-width: 100px;" onchange="update($(this), \'' . $v['id'] . '\', \'' . $this->project . '\', \'' . $this->table . '\')"');
+                                $show = Html::$m($vi, 'form-list', '', 'style="min-width: 100px;" data-old="'.$show.'" onchange="update($(this), \'' . $v['id'] . '\', \'' . $this->project . '\', \'' . $this->table . '\')"');
                             } else {
                                 if (strstr($show, ',')) {
                                     $temp = explode(',', $show);