From 665589cbdf7bf652067113dd1c0bc49012b990e0 Mon Sep 17 00:00:00 2001
From: nagachika <nagachika@ruby-lang.org>
Date: Tue, 29 Sep 2020 20:33:06 +0900
Subject: merge revision(s) df14c758fc705c49c2aaf4c9276a8f7229438fbf: [Backport
 #17181]

	Make hash returned by Hash#transform_values not have a default

	This sets an explicit default of nil.  There is probably a better
	approach of removing the default.

	Fixes [Bug #17181]
---
 hash.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'hash.c')

diff --git a/hash.c b/hash.c
index 4a3f2ff536..63b228f501 100644
--- a/hash.c
+++ b/hash.c
@@ -3211,6 +3211,7 @@ rb_hash_transform_values(VALUE hash)
 
     RETURN_SIZED_ENUMERATOR(hash, 0, 0, hash_enum_size);
     result = hash_copy(hash_alloc(rb_cHash), hash);
+    SET_DEFAULT(result, Qnil);
 
     if (!RHASH_EMPTY_P(hash)) {
         rb_hash_stlike_foreach_with_replace(result, transform_values_foreach_func, transform_values_foreach_replace, result);
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