This looks to be due to the backend storing bogus URL info provided by the on-page JS.
The Article.id field in autogen.js is initialized as this.id = location.pathname.replace(/\//g, '');. This ID gets sent up when a new comment is posted as the article URL, which is not true if the path component of the URL is something as common as /2015/05/my-post.html.
This looks to be due to the backend storing bogus URL info provided by the on-page JS.
The Article.id field in autogen.js is initialized as
this.id = location.pathname.replace(/\//g, '');. This ID gets sent up when a new comment is posted as the article URL, which is not true if the path component of the URL is something as common as/2015/05/my-post.html.