mage chain summoning nerfed with new changes?

[Cillaz]

I was messing around on my mage alt and found that you can no longer use pet commands (like pet go away) while casting.
It does say this in the most recent patch notes, so i knew about it - but i didnt realize how much it would affect my mage game play.
What this means is that mage chain summoning - casting a new pet and hitting /pet go away on the pet bar when the spell is nearly complete, no longer works.
Does anyone know if this will be the case on green? or will it not come into affect til later patches?
And does anyone know any other way for a mage to solo, without taking the 50% xp hit, now chain summoning doesnt work?