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>