设置default过滤器后。新建文章报错artical matching query does not exist.

Question

<form action="{% url 'blog:edit_action'  %}" method="post">     {% csrf_token %}         <input type="hidden" name="artical_id" value="{{ artical.id | default:'0' }}"/>         <label>文章标题             <input type="text" name="title" value="{{artical.title}}">         </label>         <br/>         <label>文章内容             <input type="text" name="content" value="{{ artical.content}}"/>         </label>         <br/>     <input type="submit" value="提交"> </form>