should_not_receive doesn't work when any_instance is used.

should_receive_spec.rb

class Foo
  def bar
    puts "bar!"
  end
end

describe Foo do 

  # This test will pass with rspec 2.9.0. An instance of Foo is receiving bar, 
  # so shouldn't it fail?
  it "should not recieve bar" do 
    Foo.any_instance.should_not_receive :bar
    Foo.new.bar
  end

end