Soocial changing family names for 'couples'

I've several 'couples' in my addressbook. Every 'couple' is formatted like this: Fred & Wilma Flinstone. Now if I change one these contacts, Soocial's changing the family names so that the second first name is added to the family name.

So where it has to say {first name}Fred & Wilma{/first name} {family name}Flinstone{/family name}, Soocial's changing the contact to:

{first name}Fred{/first name} {family name}& Wilma Flinstone{/family name}

Get the point? :)