it has been changed in glory days so that both all cloaks and all hair accessories look identical; however i noticed that for some short moment i had been able to see the 'true' cloak of someone else. it was during tyrr warrior skill usage - the one when he jumps to someone and the second one, where his char is 'multiplied' for a second or two while attacking someone (dunno how is this skill called). with both of them i was able to see the true cloak; before and after skill - not.
ye, this problem exists on any "appearance changing" item. same problem was during letter event where all had b-grade items