When you reveal a card and it's a Baker, a random unrevealed card will convert into a Baker.
With the image above I believe that only 1 of the "I was a Baker" may have been a real villager while the other is fake.
If a Baker is revealed it targets 1 card, than when the Doppleganger, or Clone from Shaman, and it targets the same card than it was a Baker that turns into a Baker.
1 Baker: Gemcrafter turns into Baker.
2 Bakers: Gamcrafter turns into Baker which turns into Baker.
3 Bakers: Same but Baker into Baker into Baker.
I don't believe that there can be 2 real was a Bakers unless you had Doppleganger, Baker, and Cloned Baker in same village.
There is no Shaman so I don't believe that there was 2 'Was Bakers' in the screenshot that you have sent.