Why be carrying out extra request?

I have route :

  model: function(params) {
    return this.store.findRecord('singleUser', params.user_id, {reload: true});
  },

  setupController: function(controller, model) {
    this._super(controller, model);
    this.store.find('userNetwork', {userId: model.id});
  },

And two models:

models/single-user.js

userNetworks: DS.hasMany('userNetwork', {async: true})

models/user-network.js

singleUser: DS.belongsTo('singleUser'),

after that my model makes request to server:

GET "server/api/userNetworks?userId=270".

it's right, but makes another one request:

GET "server/app_dev.php/api/userNetworks/40".

Help me. Why is this happening ?

Ember v1.13.7 Ember-data v1.13.9