Hey Vazkii, I found a bug.
I found that withe the R1.6 175 botania update, when you break any mana spreader, besides giving you the item, it gives you a piece of white wool.
Btw, it's a single player world with only botania and baubles (forge on the last update, even though it happened the same with an older version).
The bug happens in creative and in survival as well. I don't think that was an implementation, so i decided to let you know. :)
Vicceyr.

Screenshots: https://imgur.com/a/j66Z0
Log: http://paste.ee/p/WxOSj