Compare strings, not (sometimes) symbols

It looks like Rails 4.2 retrieves stored symbols as strings.

lib/arturo/special_handling.rb

@@ -52,7 +52,7 @@ def blacklist(feature_symbol = nil, &block)
       def two_arg_block(symbol, block)
         return block if symbol.nil?
         lambda do |feature, recipient|
-          feature.symbol == symbol && block.call(recipient)
+          feature.symbol.to_s == symbol.to_s && block.call(recipient)
         end
       end