UID 1 gets FB Connected to masqueraded user

We allow users to login via FB Connect and we're using the Masquerade module to support users who have questions about their account.

However, it seems that the UID 1 (which we use for masquerading purposes and is connected to FB as well) gets connected to the masqueraded user.

This results in Name of UID 1 is connected to Random Drupal user.