Physical addresses do not follow freedesktop.org specification

When entering physical addresses in Ubuntu One contacts, the properties do not match the freedesktop.org specification.

  "addresses": mergeable list of {
       {
           "city": string - City name,
           "description": string - "work", "home" or "other",
           "street": string - Street name,
           "state": string - State / Region name,
           "country": string - Country name,
           "postalcode": string - Postal code
       }
    },

Specifically, the properties address1 and address2 are provided, and the property street is not. Correspondingly, when I sync from my desktopcouch instance, the street property is ignored by Ubuntu One.