I gain a Band of Misfits and immediately play it (via Innovation) as a Village. Then I call Duplicate to gain a copy of it. Do I gain a Band of Misfits or a Village?
I buy a Messenger and choose to gain a (cost-reduced) Band of Misfits, immediately playing it (via Innovation) as a Village. Do the other players gain a Band of Misfits or a Village?
The ruling on Disciples is that it gains a copy of the emulated card. The ruling on Smugglers is that it gains a BoM (even when the previous player's gained BoM is currently in play emulating a Duration).
I assume Duplicate and Messenger are like Disciple and will gain a Village?
The current ruling is that all of these cards (Duplicate Messenger Disciple
Talisman) that describe a card and then gain a copy of it, are looking at the card a second time then, and so in the case of BoM played as Village, gain a Village. This is in line with Procession / Band of Misfits.
Smugglers is different because it isn't phrased like that - it looks at a list of "cards they gained."
As usual the problem is the shapeshifting Band of Misfits. Probably I should have errata'd it when doing the second editions (to e.g. "Play a cheaper Action card from the Supply, leaving it there," which yes lets you keep replaying it as a one-shot).