I found another one recently. It's kinda dumb, and by doing it you're asking for it, but thought I would report anyway as a QOL improvement. Quite simply, if you go behind your clones, you can kill them. Just stab them.

Thats not really a bug. I mean you can kill them from any angle and even with the bow. Probably because its just another robot. Ofcourse you shouldnt kill your clones, but you can

They block from the front (or at least they did for me)

I think there's an attempt to make them unkillable, but...

I thought it was a bit humorous because the commentators talked about how stupid I was when I did it. :P