Did the "Old Sona Stats Bug" Get Fixed? ((Gameplay or Bug Report, I'm not sure which))

I picked up DJ Sona yesterday like any good Sona Support main (whos been saving for a month). I immediately noticed a change in how freakin' hard she hits. I also, however, also started building Lichbane before boots (I've been taking her mid recently, not support) and I see a very specific jump in power levels there. At level 3 my burst made both Veigar and Leblanc leave lane, and I went 1v2 in a customs with friends just for fun (Sona v. Tristana / Janna) - and was able to hold my own though it was a rather quick loss - but I had more kills than both of them combined right up until the end.

A friend I play with said she read that the Old Sona Stats had accidently snuck into this patch with the new skin ("so enjoy it while it works"). I thought I read that this had happened earlier and had already been fixed.

Is there a psuedo-nerf (fix) coming, or does this Mute actually hit that hard with a Lichbane?