MediaWiki语义模板:具有输入值的属性“”(作为页面类型)包含无效字符或不完整可能导致意外结果

幸亏 this answer 我创建了一个模板,它混合了视觉表示和语义表示。

I've used the template in a page 但是 最后一部分 不起作用,并返回以下消息。

Property "" (as page type) with input value "psicologia|governo|politica|lavoro|+sep=|" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.

模板:

[{{{url}}} {{{title}}}] - {{{categories}}} 
{{#subobject:
|url = {{{url}}}
|title = {{{title}}}
|@category={{{categories}}}
}}

所需行为:

{{#subobject:
|url = https://www.instagram.com/p/CXeE2j-NT6s/
|title = Bullismo: proposta una legge in Francia per punirlo penalmente. Si rischia anche il carcere
|@category=bullismo|violenza|leggi|punizioni|+sep=|
}}