From f292f0971f4d3f02ca2aba4aef46666c27199a40 Mon Sep 17 00:00:00 2001
From: Tadas Tamosauskas <tadastoo@yahoo.com>
Date: Mon, 20 Jun 2011 14:51:07 +0100
Subject: Do not change a frozen text passed to simple_format text helper

---
 actionpack/lib/action_view/helpers/text_helper.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'actionpack/lib')

diff --git a/actionpack/lib/action_view/helpers/text_helper.rb b/actionpack/lib/action_view/helpers/text_helper.rb
index 4be95d8f7e..ae71ade588 100644
--- a/actionpack/lib/action_view/helpers/text_helper.rb
+++ b/actionpack/lib/action_view/helpers/text_helper.rb
@@ -256,6 +256,7 @@ module ActionView
       #   # => "<p><span>I'm allowed!</span> It's true.</p>"
       def simple_format(text, html_options={}, options={})
         text = '' if text.nil?
+        text = text.dup if text.frozen?
         start_tag = tag('p', html_options, true)
         text = sanitize(text) unless options[:sanitize] == false
         text = text.to_str
-- 
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