Two lists, the second with an additional field

I have a problem.
I created two lists. To subscribe to the first list, I only ask the user to enter the email. To subscribe to the second list, I ask users to enter email and facebook user. The problem is that when a user is already subscribed to the first list, and then also subscribe to the second with the same email, MailPoet not update the field with the facebook user.

Is there anything to do to make this work?

https://wordpress.org/plugins/wysija-newsletters/