Merge branch 'rails'

Conflicts:
	actionmailer/lib/action_mailer.rb
	actionmailer/lib/action_mailer/delivery_method/smtp.rb

1 files changed, 2 insertions, 2 deletions

diff --git a/activesupport/lib/active_support/core_ext/object/to_query.rb b/activesupport/lib/active_support/core_ext/object/to_query.rb
index 3f1540f685..c9981895b4 100644
--- a/activesupport/lib/active_support/core_ext/object/to_query.rb
+++ b/activesupport/lib/active_support/core_ext/object/to_query.rb
@@ -7,7 +7,7 @@ class Object
   # Note: This method is defined as a default implementation for all Objects for Hash#to_query to work.
   def to_query(key)
     require 'cgi' unless defined?(CGI) && defined?(CGI::escape)
-    "#{CGI.escape(key.to_s)}=#{CGI.escape(to_param.to_s)}"
+    "#{CGI.escape(key.to_s).gsub(/%(5B|5D)/n) { [$1].pack('H*') }}=#{CGI.escape(to_param.to_s)}"
   end
 end
 
@@ -15,7 +15,7 @@ class Array
   # Converts an array into a string suitable for use as a URL query string,
   # using the given +key+ as the param name.
   #
-  #   ['Rails', 'coding'].to_query('hobbies') # => "hobbies%5B%5D=Rails&hobbies%5B%5D=coding"
+  #   ['Rails', 'coding'].to_query('hobbies') # => "hobbies[]=Rails&hobbies[]=coding"
   def to_query(key)
     prefix = "#{key}[]"
     collect { |value| value.to_query(prefix) }.join '&'