From a3b2fd86ad3cc573c7e075429207fd9a02af55bf Mon Sep 17 00:00:00 2001
From: "Xin Du (Clark)" <clark.duxin@gmail.com>
Date: Mon, 12 Jul 2021 11:21:04 +0100
Subject: [PATCH] fix(vue-app): re-register components construtor in HMR
 (#9539)

* fix(vue-app): re-register components construtor in HMR

* simpilify checking
---
 packages/vue-app/template/client.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/packages/vue-app/template/client.js b/packages/vue-app/template/client.js
index 2f18fa7a8e..4e70ab31e8 100644
--- a/packages/vue-app/template/client.js
+++ b/packages/vue-app/template/client.js
@@ -735,6 +735,13 @@ function hotReloadAPI(_app) {
   let $components = getNuxtChildComponents(_app.<%= globals.nuxt %>, [])
 
   $components.forEach(addHotReload.bind(_app))
+
+  if (_app.context.isHMR) {
+    const Components = getMatchedComponents(router.currentRoute)
+    Components.forEach((Component) => {
+      Component.prototype.constructor = Component
+    })
+  }
 }
 
 function addHotReload ($component, depth) {