ember data relationships with same model used twice

I have an ember application with a Java Spring boot back end.

I tried the whole with simple objects and it worked fine. Now I wanted to make it a bit more complex like a real world scenario.

I have a clientDTO which looks like this

public class ClientDTO {


    private PersonDTO personDTO;
    private AddressDTO postalAddress;
    private AddressDTO residentialAddress;

My ember Models look like this.

import DS from 'ember-data';
//client.js
export default DS.Model.extend({
  person: DS.belongsTo('person', {async: false, inverse: 'client'}),
  postalAddress : DS.belongsTo('address', {async: false}) ,
  residentialAddress : DS.belongsTo('address', {async: true})
  });
//address.js
export default DS.Model.extend({
  line1: DS.attr('string'),
  line2: DS.attr('string'),
  postCode: DS.attr('string'),
  suburb: DS.attr('string'),
  client: DS.belongsTo('client')
});
//person.js
export default DS.Model.extend({
  name : DS.attr('string'),
  personName: DS.attr('string'),
  identificationNumber: DS.attr('string') ,

  client: DS.belongsTo('client', {inverse: 'party'})
});

I can define the address as an Arraylist with hasMany in the ember but that does not serve the purpose I need to have two different addressDTO objects bind with ClientDTO.

When I try to run the ember application and even load an empty /createNewClient form it gives me

ember.debug.js:17636 Assertion Failed: You defined the 'client' relationship on fo-ui@model:address:, but multiple possible inverse relationships of type fo-ui@model:address: were found on fo-ui@model:client:. Look at http://ift.tt/1aomJhS for how to explicitly specify inverses
Error

which is understandable, if i remove one of the addresses from the client.js model it works. So how can i have multiple models of the same model. As i understand there should be one 'address' model. i dont think i should need two address model one for residentialAddress and one for postalAddress. That would seem redundant.