│ │( ) Linksys Cobra (Linksys WRT1900AC v2) │ │
│ │( ) Linksys WRT1900AC v2 │ │
│ │(X) Linksys Rango (Linksys WRT3200ACM) │ │
│ │(X) Linksys WRT3200ACM │ │
│ │( ) Linksys Venom (Linksys WRT32X) │ │
Seems to happen in master menuconfig for all those mvebu routers that have an "alternative name" defined. If you select the router in menuconfig, both name versions get selected. Likely just a design feature, but looks strange.
Possibly by design, likely originating from this commit by @mwarning and merged by @hauke . They may know if that is intentional.
https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=88f8b63a3db241bdcaaaa7e5c8ae1169e6446902
The commit title does not mention "adding alternatives names" in addition of "splitting the name to components", but that is the place where the second name for each router has been added.