我正在尝试获取组件的当前路由，但 router.currentRoute 显示出一些奇怪的行为。

router.currentRoute 显示预期路由 /admin:

RefImpl {__v_isShallow: true, dep: undefined, __v_isRef: true, _rawValue: {…}, _value: {…}}
dep: Set(1) {ReactiveEffect}
__v_isRef: true
__v_isShallow: true
_rawValue: {fullPath: '/admin', path: '/admin', query: {…}, hash: '', name: 'login', …}
_value: {fullPath: '/admin', path: '/admin', query: {…}, hash: '', name: 'login', …}
value: Object
    fullPath: "/admin"
    hash: ""
    href: "/admin"
    matched: [{…}]
    meta: {}
    name: "login"
    params: {}
    path: "/admin"
    query: {}
    redirectedFrom: undefined
    [[Prototype]]: Object
[[Prototype]]: Object

但是 router.currentRoute.value 显示路由 /:

{path: '/', name: undefined, params: {…}, query: {…}, hash: '', …}
fullPath: "/"
hash: ""
matched: []
meta: {}
name: undefined
params: {}
path: "/"
query: {}
redirectedFrom: undefined
[[Prototype]]: Object

因此我无法使用 router.currentRoute.value.path 来显示当前路由。这种行为是预期的吗？如何获取组件当前的路由？