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+Sat Nov 21 04:34:16 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* symbol.c (rb_str_intern): should not freeze the receiver itself
+	  unexpectedly.  [ruby-core:71611] [Bug #11721]
+
 Fri Nov 20 23:15:18 2015  Naotoshi Seo  <sonots@gmail.com>
 
 	* lib/logger.rb: expose logger mutex