I was testing the duplicate files api and apparently it fails for some inputs. I am not able to find a pattern though.<div><br></div><div>An example api query which fails: <a href="http://commons.wikimedia.org/w/api.php?action=query&amp;generator=allimages&amp;prop=duplicatefiles&amp;gailimit=500&amp;format=xml&amp;gaifrom=Hugo">http://commons.wikimedia.org/w/api.php?action=query&amp;generator=allimages&amp;prop=duplicatefiles&amp;gailimit=500&amp;format=xml&amp;gaifrom=Hugo</a></div>

<div><br></div><div>Am I doing something wrong?</div><div><br></div><div>- Sreejith K.</div>