From bd198e775136a468f6b6494fa0dc2d40e8bf550c Mon Sep 17 00:00:00 2001
From: Carlos Rodrigues <david-181@hotmail.com>
Date: Fri, 4 Jun 2021 23:01:49 +0100
Subject: [PATCH] feat(reactivity): unwrap value when using `set` (#722)

---
 src/reactivity/set.ts        |  3 ++-
 test/ssr/ssrReactive.spec.ts | 12 ++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/reactivity/set.ts b/src/reactivity/set.ts
index f2a733cd..f33032d2 100644
--- a/src/reactivity/set.ts
+++ b/src/reactivity/set.ts
@@ -34,7 +34,8 @@ export function set<T>(target: any, key: any, val: T): T {
     return val
   }
   if (!ob) {
-    target[key] = val
+    // If we are using `set` we can assume that the unwrapping is intended
+    defineAccessControl(target, key, val)
     return val
   }
   defineReactive(ob.value, key, val)
diff --git a/test/ssr/ssrReactive.spec.ts b/test/ssr/ssrReactive.spec.ts
index 5c8510ca..b4325fa3 100644
--- a/test/ssr/ssrReactive.spec.ts
+++ b/test/ssr/ssrReactive.spec.ts
@@ -90,4 +90,16 @@ describe('SSR Reactive', () => {
 
     done()
   })
+
+  // #721
+  it('should behave correctly', () => {
+    const state = ref({ old: ref(false) })
+    set(state.value, 'new', ref(true))
+    // console.log(process.server, 'state.value', JSON.stringify(state.value))
+
+    expect(state.value).toMatchObject({
+      old: false,
+      new: true,
+    })
+  })
 })