From 1c360965e79ab73de2a29291869cefcfcd750044 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Fri, 21 Jul 2017 10:57:21 +0900
Subject: Need to unshare env on OP_R_BREAK too.

---
 src/vm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/vm.c b/src/vm.c
index d43f0f4e5..405c94f47 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -2051,6 +2051,7 @@ RETRY_TRY_BLOCK:
             }
             ci--;
           }
+          mrb_env_unshare(mrb, ci->env);
           break;
         default:
           /* cannot happen */
-- 
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