def sreg_properties
      props = {}
      release_policies.each do |rp|
        is_sreg = (rp.property == rp.type_identifier)
        props[rp.property] = persona.property(rp.property) if is_sreg
      end
      props
    end
def sreg_properties
      props = {}
      release_policies.each do |rp|
        is_sreg = (rp.property == rp.type_identifier)
        props[rp.property] = persona.property(rp.property) if is_sreg
      end
      props
    end
Returns a hash with all released SReg properties. SReg properties
 have a type_identifier matching their property name