The API does not list any edits for users blocked with 'hideuser', but Special:Contributions does. Compare the two links below:
http://fr.wiktionary.org/w/api.php?action=query&list=usercontribs&ucuser=Poupoule+clemou
http://fr.wiktionary.org/wiki/Special:Contributions/Poupoule_clemou
Ideally the API should list their usercontribs, even if it hides their name in generic lists & logs. (This is particularly relevant to [[m:user:StewardBot]], which checks whether they have edits to suggest unhiding.)
Version: 1.15.x
Severity: enhancement