Okay pujo, lets do some math, http://prntscr.com/ef8rqn says 45%, and is on the 9th of september 2013, repitch post http://prntscr.com/ef8s3a, is on the 23rd of september, now if my calculations are correct, the hotfix happend just 14 days, 2 weeks, 1 fortnight after the buff was given to the spell.
http://i.imgur.com/yDNMWPm.jpg