When running a query looking for all the pages using a property, it retuns only the items where this property has the value unknown, although the API documentation says "Note that the item-less form of this query also works for string, time, and coordinate properties.".

For instance, http://tools.wmflabs.org/autolist/autolist1.html?q=claim%5B1476%5D only gives the items where P1476=unknown value.

Thank you very much for any help.