raise original exception in i18n interpolation fallback middleware

lib/i18n_interpolation_fallbacks.rb

@@ -5,17 +5,19 @@ module I18n
         default = extract_non_symbol_default!(options) if options[:default]
         options.merge!(:default => default) if default
 
+        original_exception = nil
+
         I18n.fallbacks[locale].each do |fallback|
           begin
             result = super(fallback, key, options)
             return result unless result.nil?
-          rescue I18n::MissingInterpolationArgument
-          rescue I18n::InvalidPluralizationData
+          rescue I18n::MissingInterpolationArgument, I18n::InvalidPluralizationData => e
+            original_exception ||= e
           end
         end
 
         return super(locale, nil, options) if default
-        raise(I18n::MissingInterpolationArgument.new(key, options, locale))
+        raise original_exception
       end
     end
   end