Pass back.

app/mutations/devices/create.rb

@@ -14,7 +14,7 @@ module Devices
 
     def execute
       inputs["name"] ||= Haikunator.haikunate(99)
-      dev = Device.find_or_initialize_by(uuid: uuid, token: token)
+      dev = Device.find_or_initialize_by(uuid: uuid)
       if update_attributes(dev, inputs.except(:user))
         user.update_attributes(device: dev)
       end

spec/controllers/api/devices/devices_controller_create_spec.rb

@@ -27,6 +27,7 @@ describe Api::DevicesController do
       post :create, params
       user.reload
       user2.reload
+      binding.pry
       expect(user.device.id).to eq(user2.device.id)
     end
   end