From e6ccdd9d1a2263f2e55982451c4a980c119e8167 Mon Sep 17 00:00:00 2001
From: Damian Gryski <damian@gryski.com>
Date: Thu, 30 Mar 2023 13:50:50 -0700
Subject: [PATCH] reflect: another obscure RO bug

---
 src/reflect/value.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/reflect/value.go b/src/reflect/value.go
index 95a65082..dd2691be 100644
--- a/src/reflect/value.go
+++ b/src/reflect/value.go
@@ -276,7 +276,9 @@ func (v Value) Addr() Value {
 	if !v.CanAddr() {
 		panic("reflect.Value.Addr of unaddressable value")
 	}
-	flags := (v.flags & (valueFlagExported)) | v.flags.ro()
+	// Preserve flagRO instead of using v.flag.ro() so that
+	// v.Addr().Elem() is equivalent to v (#32772)
+	flags := v.flags & (valueFlagExported | valueFlagRO)
 	return Value{
 		typecode: pointerTo(v.typecode),
 		value:    v.value,