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+Wed Oct 17 06:25:56 2012 Aaron Patterson <aaron@tenderlovemaking.com>
+
+ * hash.c (initialize_copy): copy the underlying st_table on dup,
+ rather than copying the hash key by key. [ruby-core:48009]
+
+ * test/ruby/test_hash.rb: relevant tests for initialize_copy
+
Wed Oct 17 06:17:44 2012 Koichi Sasada <ko1@atdot.net>
* vm_insnhelper.c (vm_call_iseq_setup_2): separate tailcall and normal