Weird error when confined to a module in rails 3

[jneen]

Hey there,

I have all my auth classes namespaced, like so:

module Auth
  class Session
    # ...
  end
  class User
    # ...
  end
  # etc
end

I'm seeing the following error when trying to save a session:

`@auth::user' is not allowed as an instance variable name

I followed the stack traces a little bit, and it looks like it's triggered whenever find_by_rpx_identifier is called. There's a bunch of metaprogramming stuff in acts_as_authentic.rb, which seems to be sending the method auth::user to the session. Ideas?