module_eval with refinements confuses inline method cache

t.rb

class C
  def foo
    "original"
  end
end

module M
  refine C do
    def foo
      "refined"
    end
  end
end

def m(*args)
  C.new.foo
end

c = C.new
f = Proc.new { c.foo }
p f.() # "original"
p M.module_eval(&f) "refined"
p f.() # should be "original", but...