Last modified: 2012-04-16 09:16:16 UTC
Why does the interwikimap not contain ckb: http://commons.wikimedia.org/w/api.php?action=query&meta=siteinfo&siprop=interwikimap whereas it's evidently a valid interlanguage prefix: http://commons.wikimedia.org/w/api.php?action=query&prop=langlinks&titles=User:Lupo/ct http://ckb.wikipedia.org
That is most likely due to bug 19838. I was just working on fixing this, so that the API uses the interwiki cache.
*** This bug has been marked as a duplicate of bug 19838 ***