Silly Noob Question regarding Lightless Lanterns

[Fate]

In answer to your other question, no two identical items can give the same buff from sitting in the first two miscellaneous slots of a unit.

That means 2 lightless lanterns = 6 RP, 2 burning Pearls = 5attack (I think?), 2 bracers of protection = +2 def and protection.

HOWEVER, if your unit has 3 slots (or more) and you put the same item in the first and third slots they will stack (I am not sure if this is considered a bug/exploit or is WAD).