fix(components): [InfiniteScroll] error caused by value of el[SCOPE]

[YiMo1]

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resolves #14776
resolves #14775

复现步骤

1. 创建五个文件：

   • App.vue:

     <RouterLink to="/pageA/subA">PageA</RouterLink>
     <RouterLink to="/pageB/subB">PageB</RouterLink>
     <RouterView v-slot="{ Component }">
       <KeepAlive>
         <component :is="Component" />
       </KeepAlive>
     </RouterView>

   • PageA.vue:

     <div>
       PageA
       <router-view />
     </div>

   • PageB.vue:

     <div>
       PageB
       <router-view />
     </div>

   • subPageA.vue:

     <div v-infinite-scroll="fn"></div>

   • subPageB.vue:

     <div v-infinite-scroll="fn"></div>

2. 配置路由结构：

   {
     path: "/pageA",
     component: PageA.vue,
     children: [{  path: "subA",component: subPageA.vue } ],
   },
   {
     path: "/pageB",
     component:  PageB.vue,
     children: [{  path: "subB",component: subPageB.vue } ],
   }

3. 来回点击两个路由链接即可。

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[github-actions]

[github-actions]

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