Can't inspect a mimic when I don't have vision on it, but can still see it due to Mimic's Tooth

If I inspect the chest on the left, it's a chest. If I inspect the chest on the right, it inspects the floor.

It just surprises me that it's like the mimic one isn't even there. (When I first tried to inspect it, I didn't know it was a mimic yet.)

I'm guessing this happens because you can't inspect an enemy you can't see, and showing the mimic when you don't have vision on it is something extra added by Mimic's Tooth to make it less distinguishable from ordinary chests. (Normally, mimics aren't shown unless you currently have vision on them.)

I'm playing Beta 3.1, but this has probably been this way forever.