Bramble Vest Passive not Working w/ Zed Clones

Zed makes a clone of himself and twitch goes on to crit the clone several times proccing LW and doing increased damage. Looks like the passive "Block Crits" or whatever on Bramble Vest seems to not work on zed clones. Doubt this even matters with just a couple weeks left in the set but who knows if zed comes back next set so why not let you know.