From d5cc7113076ccd82b6e7582ce77fd2062323c87d Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Fri, 4 May 2012 15:55:36 -0700
Subject: [PATCH] need to dup the default options so that mutations will not
 impact us

---
 actionpack/lib/action_dispatch/request/session.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/actionpack/lib/action_dispatch/request/session.rb b/actionpack/lib/action_dispatch/request/session.rb
index 338165935b..4ad7071820 100644
--- a/actionpack/lib/action_dispatch/request/session.rb
+++ b/actionpack/lib/action_dispatch/request/session.rb
@@ -37,7 +37,7 @@ module ActionDispatch
         def initialize(by, env, default_options)
           @by       = by
           @env      = env
-          @delegate = default_options
+          @delegate = default_options.dup
         end
 
         def [](key)