"It is possible to paste an accurate Commons media filename like File:filename.jpg into a property that accepts that type. However, it does not strip the "File:" prefix, so the URL created is invalid: it has the form commons.wikimedia.org/wiki/File:File:filename.jpg."

(reported at http://www.wikidata.org/wiki/Wikidata:Contact_the_development_team#media_data_type_URL_problem)

Version: master
Severity: normal