https://git.ruby-lang.org/ruby.git/commit/?id=1cfc139f6d

From 1cfc139f6d0cb80d6024b0c416976194929417cf Mon Sep 17 00:00:00 2001
From: nagachika <nagachika@r...>
Date: Sun, 4 Sep 2022 16:00:14 +0900
Subject: merge revision(s) d8189ed23f02dd197453279aeee9be1785337d4f: [Backport
 #18670]

	Return only captured range in `MatchData` [Bug #18670]

	---
	 re.c                     | 2 +-
	 test/ruby/test_regexp.rb | 1 +
	 2 files changed, 2 insertions(+), 1 deletion(-)
---
 re.c                     | 2 +-
 test/ruby/test_regexp.rb | 1 +
 version.h                | 4 ++--
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/re.c b/re.c
index d91909a743..1ecb067399 100644
--- a/re.c
+++ b/re.c
@@ -2120,7 +2120,7 @@ match_aref(int argc, VALUE *argv, VALUE match) https://github.com/ruby/ruby/blob/trunk/re.c#L2120
 	else if (beg > num_regs) {
 	    return Qnil;
 	}
-	else if (beg+len > num_regs) {
+	if (beg+len > num_regs) {
 	    len = num_regs - beg;
 	}
 	return match_ary_subseq(match, beg, len, Qnil);
diff --git a/test/ruby/test_regexp.rb b/test/ruby/test_regexp.rb
index b4e4f725b3..c183988303 100644
--- a/test/ruby/test_regexp.rb
+++ b/test/ruby/test_regexp.rb
@@ -467,6 +467,7 @@ class TestRegexp < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_regexp.rb#L467
     assert_nil(m[5])
     assert_raise(IndexError) { m[:foo] }
     assert_raise(TypeError) { m[nil] }
+    assert_equal(["baz", nil], m[-2, 3])
   end
 
   def test_match_values_at
diff --git a/version.h b/version.h
index 826c72a564..27440ec8ee 100644
--- a/version.h
+++ b/version.h
@@ -11,11 +11,11 @@ https://github.com/ruby/ruby/blob/trunk/version.h#L11
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 3
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 44
+#define RUBY_PATCHLEVEL 45
 
 #define RUBY_RELEASE_YEAR 2022
 #define RUBY_RELEASE_MONTH 9
-#define RUBY_RELEASE_DAY 3
+#define RUBY_RELEASE_DAY 4
 
 #include "ruby/version.h"
 
-- 
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