After what took around 80 days, the Half Life/Portal character board is finally complete! A huge huge thank you to everyone over at r/HalfLife who participated, and user Abisalli on Tumblr dot com for the base I used :-D
(Click for the full image)
This is more of a theory, but I think this specific Clone Cop line and one of the Bonus Maps implies that when a host body is "overwritten" with Aiden, some aspects(such as parts of their original personality or memories) of the host don't go away, even influencing how the clone acts to some regard. It would also explain the "closest descendent template" role that Clone Cop fills.
Dunno if anyone's pointed this out yet but that one "under_the_mask" image from the game files posted here a while back can be seen in-game during the confrontation with the Advisor.