From dcee404ebb8d37c0a85707ad61d55516e2aba022 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Fri, 10 May 2024 20:36:01 +0900
Subject: [PATCH] mruby-hash-ext: use NONE.equal?() for NONE comparison; ref
 #6262

---
 mrbgems/mruby-hash-ext/mrblib/hash.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mrbgems/mruby-hash-ext/mrblib/hash.rb b/mrbgems/mruby-hash-ext/mrblib/hash.rb
index 11537093fc..1b73119303 100644
--- a/mrbgems/mruby-hash-ext/mrblib/hash.rb
+++ b/mrbgems/mruby-hash-ext/mrblib/hash.rb
@@ -164,7 +164,7 @@ def fetch(key, none=NONE, &block)
     unless self.key?(key)
       if block
         block.call(key)
-      elsif none != NONE
+      elsif !NONE.equal?(none)
         none
       else
         raise KeyError, "Key not found: #{key.inspect}"