Fix options passing in Json and Attributes adapters.

Author: beauby

lib/active_model/serializer/adapter/attributes.rb

@@ -10,7 +10,7 @@ def initialize(serializer, options = {})
         def serializable_hash(options = nil)
           options ||= {}
           if serializer.respond_to?(:each)
-            result = serializer.map { |s| Attributes.new(s).serializable_hash(options) }
+            result = serializer.map { |s| Attributes.new(s, instance_options).serializable_hash(options) }
           else
             hash = {}
 

lib/active_model/serializer/adapter/json.rb

@@ -7,7 +7,7 @@ class Json < Base
 
         def serializable_hash(options = nil)
           options ||= {}
-          { root => Attributes.new(serializer).serializable_hash(options) }
+          { root => Attributes.new(serializer, instance_options).serializable_hash(options) }
         end
 
         private