No variant should also be picked up by variant.any if variant.none is not...

No variant should also be picked up by variant.any if variant.none is not defined (just like any other variant)

actionpack/lib/action_controller/metal/mime_responds.rb

@@ -532,7 +532,7 @@ def method_missing(name, *args, &block)
 
         def variant
           if @variant.nil?
-            @variants[:none]
+            @variants[:none] || @variants[:any]
           elsif (@variants.keys & @variant).any?
             @variant.each do |v|
               return @variants[v] if @variants.key?(v)

actionpack/test/controller/mime/respond_to_test.rb

@@ -671,6 +671,10 @@ def test_variant_any
   end
 
   def test_variant_any_any
+    get :variant_any_any
+    assert_equal "text/html", @response.content_type
+    assert_equal "any", @response.body
+
     @request.variant = :phone
     get :variant_any_any
     assert_equal "text/html", @response.content_type