From c3bf3414ec92e02e7f3dc70394c4a7c5512bdbd1 Mon Sep 17 00:00:00 2001
From: Kasper Timm Hansen <kaspth@gmail.com>
Date: Tue, 28 Jun 2016 18:42:26 +0200
Subject: Add dup leftover from 26710ab.

---
 actionview/lib/action_view/helpers/tag_helper.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'actionview/lib/action_view/helpers')

diff --git a/actionview/lib/action_view/helpers/tag_helper.rb b/actionview/lib/action_view/helpers/tag_helper.rb
index b598dcbdbf..48dea8f214 100644
--- a/actionview/lib/action_view/helpers/tag_helper.rb
+++ b/actionview/lib/action_view/helpers/tag_helper.rb
@@ -58,7 +58,7 @@ module ActionView
 
         def tag_options(options, escape = true)
           return if options.blank?
-          output = ""
+          output = "".dup
           sep    = " "
           options.each_pair do |key, value|
             if TAG_PREFIXES.include?(key) && value.is_a?(Hash)
-- 
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