Hi

I am trying to retrieve the categories of new pages via the API on the Danish Wikipedia using this API request:

https://da.wikipedia.org/w/api.php?action=query&prop=categories&form...

When I make that request, I get this response https://gist.github.com/cgtdk/e746b6042883b970c640 (a non-broken up version of the API request URL has been added to the gist as a comment).

The interesting part is line 76 to 86. This is the response item for the page "VM i bandy 2015". It claims that this page only has one category, "Kategori:Fremtidige sportsbegivenheder", but it actually has had three categories ever since the first (and only, as of writing this) revision: Kategori:Fremtidige sportsbegivenheder, Kategori:VM i bandy, and Kategori:Sport i 2015.

I have tried to do this several times (with minor modifications) both in the API Sandbox on dawiki and directly.

When I query the page directly, like this:

https://da.wikipedia.org/w/api.php?action=query&prop=categories&form...

I get this response: https://gist.github.com/cgtdk/69e874cf7d3fae6ee506 which shows the correct category information for the page.

What is going on? Am I doing something wrong or is there a bug?

Thanks, Christoffer G. Thomsen (meta:User:Cgtdk)