有关addRoute父子路由name、path相同时的处理结果问题

[Mr-BeanSir]

Reproduction

https://codesandbox.io/p/sandbox/vue-router-4-addroute-bug-4t7fyx

Steps to reproduce the bug

[Vue Router warn]: Finding ancestor route "/:path(.)" failed for "/:path(.)"

Expected behavior

在父路由被删除，matchers.lastIndexOf(insertionAncestor, upper - 1) 返回-1时，使用此路由的原本upper，而不是返回-1的upper

0 : {path: '/', redirect: undefined, name: undefined, meta: {…}, aliasOf: undefined, …}
1 : {path: '/:path(.*)*', redirect: undefined, name: 'ErrorPage', meta: {…}, aliasOf: undefined, …}

Actual behavior

0 : {path: '/:path(.*)*', redirect: undefined, name: 'ErrorPage', meta: {…}, aliasOf: undefined, …}
1 : {path: '/', redirect: undefined, name: undefined, meta: {…}, aliasOf: undefined, …}

Additional information

打开Reproduction，f12然后点击click here按钮，可以看到现在vue-router对于父子路由name，path相同时addRoute的处理结果

[posva]

Duplicate of #2266

[Mr-BeanSir]

Duplicate of #2266

If the names are different, two routes will be created, as shown below

0: {path: '/', redirect: undefined, name: 'home', meta: {…}, aliasOf: undefined, …}
1: {path: '/:path(.*)*', redirect: undefined, name: 'ErrorPageSon', meta: {…}, aliasOf: undefined, …}
2: {path: '/:path(.*)*', redirect: undefined, name: ErrorPage, meta: {…}, aliasOf: undefined, …}

i hope my route list is clean,only has one ErrorPageSon route insert.
and i find,if have same name,but path different,it can be only created one route,maybe it's bug?look at the code below,removeRoute will remove parent route when insert child route.

export const RedirectRoute: RouteRecordRaw = {
  path: '/redirect',
  name: RedirectName,
  component: Layout,
  meta: {
    title: RedirectName,
    hideBreadcrumb: true,
  },
  children: [
    {
      path: ':path(.*)',
      name: RedirectName,
      component: () => import('@/views/redirect/index.vue'),
      meta: {
        title: RedirectName,
        hideBreadcrumb: true,
      },
    },
  ],
};

#2267 throw Error i think that reasonable for same name,This can help people know the specific cause of errors in the development environment
If it's just a warning, I think it's good to handle the routing better

The above is just my personal opinion. I just hope that my routing list can be cleaner and there will be no extra routes