From a04c3f0189ab0a3af30983ffb0c22762c43c4dd9 Mon Sep 17 00:00:00 2001
From: Benoit Blanchon <git@benoitblanchon.fr>
Date: Thu, 10 Mar 2022 18:31:54 +0100
Subject: [PATCH] Ignore write to member

---
 extras/tests/JsonVariant/link.cpp       | 7 +++++++
 src/ArduinoJson/Variant/VariantData.hpp | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/extras/tests/JsonVariant/link.cpp b/extras/tests/JsonVariant/link.cpp
index 66421520..c06ff41f 100644
--- a/extras/tests/JsonVariant/link.cpp
+++ b/extras/tests/JsonVariant/link.cpp
@@ -72,4 +72,11 @@ TEST_CASE("Linked document") {
   SECTION("get member") {
     CHECK(variant["hello"].as<std::string>() == "world");
   }
+
+  SECTION("set member") {
+    // The link is read-only; the following line should have no side effect
+    variant["tutu"] = "toto";
+
+    CHECK(doc1.as<std::string>() == "{\"hello\":\"world\"}");
+  }
 }
diff --git a/src/ArduinoJson/Variant/VariantData.hpp b/src/ArduinoJson/Variant/VariantData.hpp
index dc8e6fdf..5982b904 100644
--- a/src/ArduinoJson/Variant/VariantData.hpp
+++ b/src/ArduinoJson/Variant/VariantData.hpp
@@ -314,7 +314,7 @@ class VariantData {
                               TStoragePolicy storage_policy) {
     if (isNull())
       toObject();
-    if (!isObject())
+    if (!isObjectStrict())
       return 0;
     return _content.asCollection.getOrAddMember(key, pool, storage_policy);
   }