From 5c5dcdd11728d62a69e53f7a80ec2db8e16c4230 Mon Sep 17 00:00:00 2001
From: Protobuf Team Bot <protobuf-github-bot@google.com>
Date: Fri, 20 Jan 2023 07:52:36 -0800
Subject: [PATCH] Fix a bug in which a possibly invalidated swisstable
 reference is used.

The hashtable could have rehashed and invalidated the reference.

PiperOrigin-RevId: 503442163
---
 src/google/protobuf/compiler/csharp/csharp_primitive_field.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/google/protobuf/compiler/csharp/csharp_primitive_field.cc b/src/google/protobuf/compiler/csharp/csharp_primitive_field.cc
index 46cb701f2e2ba..a0bd2e4702d7b 100644
--- a/src/google/protobuf/compiler/csharp/csharp_primitive_field.cc
+++ b/src/google/protobuf/compiler/csharp/csharp_primitive_field.cc
@@ -32,6 +32,7 @@
 
 #include <sstream>
 #include <string>
+#include <utility>
 
 #include "google/protobuf/compiler/code_generator.h"
 #include "absl/strings/str_cat.h"
@@ -88,7 +89,8 @@ void PrimitiveFieldGenerator::GenerateMembers(io::Printer* printer) {
     variables_["default_value_access"] =
         absl::StrCat(property_name, "DefaultValue");
   } else {
-    variables_["default_value_access"] = variables_["default_value"];
+    std::string default_value = variables_["default_value"];
+    variables_["default_value_access"] = std::move(default_value);
   }
 
   // Declare the field itself.