complete getValueOf method

app/Models/Workflow.php

@@ -38,6 +38,8 @@ class Workflow extends Model
             'status_id' => null,
             'system_id' => null,
             'user_id' => null,
+            'task_id' => null,
+            'subject_id' => $this->id,
         ];
 
         if ($key && isset($values, $key)) {