Customer profiles are being created even when a form that contains a Customer Profile Reference field fails validation

Steps to Reproduce this bug:

1. Add a new Customer Profile Reference field (commerce_customer_profile_reference) to the user entity at .../admin/config/people/accounts/fields and select the Customer Profile Manager (commerce_customer_profile_manager) wiget. PS: Haven't tested but this bug might occurs if this field is added to any entity (node, taxonomy, etc)
2. Try to create a new user at .../user/register, leave some required field empty so the form will fail validation and submit it.
3. Log back in as administrator and check out the list of customer profiles at .../admin/commerce/customer-profiles, you will notice that a new profile was added.

If the form fails 10x you will end up with 10 customer profiles for those failed validation attempts.