So I have been playing Timbersaw in current Dota 2 patch (not test version) and I got replicated by Morphling. I don't use any cosmetic items, except for Saw of Steam Chopper (as can be seen here http://imgur.com/a/rQLK5) and replica has Controlled Burn icon and error instead of claw and effects (as can be seen here http://imgur.com/a/Jk3hK).

Error occured in match №2674904344 on 11.15 (by game time)