Sam:
I'm definitely no expert on this, but I would guess that they wouldn't know to link your biometrics to the marriage-based petition since both applications were filed separately a couple of months apart. I'm sure if you take Infopass, the officer could answer whether or not it would be necessary for another biometric or if they could just add the new receipt number to the existing file. Again, I'm just guessing here. Good luck.
I'm definitely no expert on this, but I would guess that they wouldn't know to link your biometrics to the marriage-based petition since both applications were filed separately a couple of months apart. I'm sure if you take Infopass, the officer could answer whether or not it would be necessary for another biometric or if they could just add the new receipt number to the existing file. Again, I'm just guessing here. Good luck.