Login via social profile doesn't find existing associations

[rdiaztushman]

To recreate:

• login with a social provider (e.g. Google) using one primary email address (e.g. you@domain.com)
• associate your user account with another profile (e.g. FB) that uses a different primary email address (e.g. you@another_domain.com)
• Logout
• Login using the second profile, you@another_domain.com, and Users won't find the account, asking you to create a new one