I've tried to rollback an edit[1] of an anonimous user, but nothing happened when I clicked in the rollback link.
Then I did a test edit in other page[2] and tried to rollback it to see if the problem still happened, and in fact, it doens't works.
[1] https://secure.wikimedia.org/wikibooks/pt/w/index.php/?diff=prev&oldid=211865
[2] https://secure.wikimedia.org/wikibooks/pt/w/index.php?title=T%C3%B3pico:Wikilivros:LiquidThreads/Blah2/resposta_(2)&oldid=211867&diff=prev
Version: unspecified
Severity: enhancement
URL: https://secure.wikimedia.org/wikibooks/pt/w/index.php?title=T%C3%B3pico:Wikilivros:LiquidThreads/Blah2/resposta_(2)&action=rollback&from=Helder.wiki&token=e36ba4c4124fd7007aa7339db79a1149%2B\