RealmSortedBugExample.js

import Realm from 'realm';
const IdentitySchema = {
  name: 'Identity',
  properties: {
    name: 'string',
    birthday: 'date',
    address: 'string',
  }
};

const PersonSchema = {
  name: 'Person',
  properties: {
    identity: 'Identity',
    hasCar: 'bool',
  }
}

const realm = new Realm({schema: [IdentitySchema, PersonSchema]});

realm.write(() => {
  realm.deleteAll();
  const identityOne = realm.create('Identity', {
    name: 'Bob',
    birthday: new Date(),
    address: '123 Somewhere Land',
  });

  const identityTwo = realm.create('Identity', {
    name: 'glob',
    birthday: new Date(),
    address: '9000 Somewhere Land',
  })

  realm.create('Person', {
    identity: identityOne,
    hasCar: true,
  });

  realm.create('Person', {
    identity: identityTwo,
    hasCar: false,
  });
});

const people = realm.objects('Person');
const filterTest = people.filtered('identity.name CONTAINS[c] "Bob"'); // Works fine
const sortedTest1 = people.sorted('hasCar'); // Works fine
const sortedTest2 = people.sorted('identity.name'); // RSOD, "Property 'identity.name' does not exist on object type 'person'"
console.log(sortedTest2);