Hey! When a villager is repairing a wall, it shows in the inspect menu "a tribemember is inside" and they are litterally inside the wall repairing
Dunno if this is intended, manned walls might be a cool idea though
Manned walls was something I was going to suggest!
It's a side effect of the way citizens interact with buildings. I'd like to change how repairs are done generally, which would avoid the issue.