Am 11.11.2015 um 04:08 schrieb Sebastian Burgstaller:
The undo and undoafter API calls do not seem to work
on Wikidata items.
That should work. If it doesn't, please file a bug report, and list some
revisions you tried to undo.
Please check if you are able to undo the edit manually over the normal user
interface, too.
--
Daniel Kinzler
Senior Software Developer
Wikimedia Deutschland
Gesellschaft zur Förderung Freien Wissens e.V.