From f78c5fbb96b507fb80405c25cfce12136f9d45cd Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Mon, 28 Oct 2013 13:42:49 -0700
Subject: use a queue rather than a list. fixes #12069

---
 activesupport/lib/active_support/notifications/fanout.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/activesupport/lib/active_support/notifications/fanout.rb b/activesupport/lib/active_support/notifications/fanout.rb
index 99fe03e6d0..f7f1987380 100644
--- a/activesupport/lib/active_support/notifications/fanout.rb
+++ b/activesupport/lib/active_support/notifications/fanout.rb
@@ -108,7 +108,7 @@ module ActiveSupport
 
         class Timed < Evented
           def initialize(pattern, delegate)
-            @timestack = []
+            @timestack = Queue.new
             super
           end
 
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