current_page is not set if paging is used inside scope def

[kpolitowicz]

Trivial example:

class Person <  < ActiveRecord::Base
  scope :paged, lambda { |p| page(p) }
end

Now:

irb(main):002:0> Person.paged(1).current_page
=> nil
irb(main):003:0> Person.page(1).current_page
=> page 1

to_sql returns the same of course.