Last modified: 2011-03-13 18:06:12 UTC
The following query gives a blank page: http://commons.wikimedia.org/w/query.php?what=imageinfo|categories&iihistory&iiurl&titles=Image:Achtung.png&format=xml This applies for any image . Equivalent queries work on other wikis, like de.wikipedia.org. Taking out either iihistory or iiurl does give a result: http://commons.wikimedia.org/w/query.php?what=imageinfo|categories&iiurl&titles=Image:Achtung.png&format=xml http://commons.wikimedia.org/w/query.php?what=imageinfo|categories&iihistory&titles=Image:Achtung.png&format=xml seems odd.
Internal image storage subsystem has been changed and a rewrite is needed. There are two functions to get all such info: wfFindFile() -- returns image file info regardless of where it is wfLocalFile() -- returns only local file info (not in commons), or a placeholder object if no image exists.
*** Bug 10132 has been marked as a duplicate of this bug. ***
As the query.php is obsolete now, no more bugfixes will probably be made to it, and thus I mark it as wontfix