uninitialized constant Resources::AbstractModel::Invalid

Installed today's nightly build and when I click on the User link (next to Notifications count, upper right corner), the page I see displays: 

```
NameError in UsersController#index

uninitialized constant Resources::AbstractModel::Invalid

Rails.root: /usr/share/katello
Application Trace | Framework Trace | Full Trace

app/lib/notifications/notifier.rb:76:in `exception'
app/controllers/application_controller.rb:412:in `render_error'
app/controllers/application_controller.rb:55:in `__bind_1363273867_580831'
app/controllers/application_controller.rb:672:in `call'
app/controllers/application_controller.rb:672:in `execute_rescue'
app/controllers/application_controller.rb:55:in `__bind_1363273867_580831'

Request

Parameters:

{"only"=>"true",
 "id"=>"1"}

Show session dump

Show env dump
Response

Headers:

None
```