From 98ed9d75f362327134c69fd49afec791c5f6e2be Mon Sep 17 00:00:00 2001
From: dupfei <1419006060@qq.com>
Date: Thu, 21 Jul 2022 21:22:04 +0800
Subject: [PATCH] fix(reactivity): when setting a property the shallowReactive
 object should not unwrap refs and the reactive object should retain readonly
 proxy

---
 src/core/observer/index.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/core/observer/index.ts b/src/core/observer/index.ts
index 84744dd85f9..05cf69a27d8 100644
--- a/src/core/observer/index.ts
+++ b/src/core/observer/index.ts
@@ -191,7 +191,12 @@ export function defineReactive(
       } else if (getter) {
         // #7981: for accessor properties without setter
         return
-      } else if (isRef(value) && !isRef(newVal)) {
+      } else if (
+        !shallow &&
+        !isReadonly(newVal) &&
+        isRef(value) &&
+        !isRef(newVal)
+      ) {
         value.value = newVal
         return
       } else {