From 15fba69710c7395b4e9523edb191ef84f672fa28 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Fri, 21 Apr 2017 10:08:23 +0900
Subject: Revert ae4217e81; fix #3619

Reopens #3550. Those 2 issues are exclusive.
---
 src/gc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gc.c b/src/gc.c
index c83ce9df8..3152550e4 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -769,7 +769,7 @@ obj_free(mrb_state *mrb, struct RBasic *obj, int end)
         while (ce <= ci) {
           struct REnv *e = ci->env;
           if (e && !is_dead(&mrb->gc, e) &&
-              e->tt == MRB_TT_ENV && !MRB_ENV_STACK_SHARED_P(e)) {
+              e->tt == MRB_TT_ENV && MRB_ENV_STACK_SHARED_P(e)) {
             mrb_env_unshare(mrb, e);
           }
           ci--;
-- 
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