https://git.ruby-lang.org/ruby.git/commit/?id=83e9d6b3f4

From 83e9d6b3f40971bf054ba83ba175227b262bcd14 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Thu, 12 Mar 2020 17:09:43 +0900
Subject: Pass keyword argument by RB_PASS_KEYWORDS

To pass `false` as `freeze:` keyword argument, `kw_splat` argument
should be true.  Also `rb_keyword_given_p()` should return true
here as `false` has been given as a keyword argument.

diff --git a/object.c b/object.c
index e15b17f..496955e 100644
--- a/object.c
+++ b/object.c
@@ -493,7 +493,7 @@ mutable_obj_clone(VALUE obj, int kwfreeze) https://github.com/ruby/ruby/blob/trunk/object.c#L493
 
         argv[0] = obj;
         argv[1] = freeze_false_hash;
-        rb_funcallv_kw(clone, id_init_clone, 2, argv, RB_PASS_CALLED_KEYWORDS);
+        rb_funcallv_kw(clone, id_init_clone, 2, argv, RB_PASS_KEYWORDS);
     }
 
     return clone;
-- 
cgit v0.10.2


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