Vue.js infinite loop with prop array - vue.js

Question

In my App.vue:
I'm using updated() for getting user info after callback and each time I change the route and getting info and
mounted(), if I used F5 or go to my website already connected with SSO
The problem is that in my updated(), I set an array which is passed to a component. It make infinity loop.
How can I avoid it ?
App.vue :
<template>
<Sidebar v-if="isLoggedIn" :displayName="currentUser" v-bind:role="rolesT" />
</template>
<script lang="ts">
public rolesT: ReadonlyArray<String> = ["test"];
public initUser() {
this.auth = Vue.prototype.$auth;
this.auth.getUser().then((user) => {
if (user !== null) {
this.currentUser = user.profile.name!;
this.accessTokenExpired = user.expired;
this.rolesT = []; // if I use only this one, I have infinite loop
this.rolesT = user.profile.roles ; // if I use only this one, I have infinite loop
this.rolesT = this.rolesT; // if I use only this one, I dont have infinite loop, but its useless, it was just for test
console.log(this.rolesT);
}
this.isLoggedIn = (user !== null && !user.expired);
});
}
public mounted() {
console.log("mounted");
this.initUser();
}
public updated() {
console.log("updated");
this.initUser();
}
}
</script>
Sidebar.vue (I do nothing with the array for now, but still loop) :
[...]
<script lang="ts">
import { Component, Vue, Prop } from 'vue-property-decorator';
#Component
export default class Sidebar extends Vue {
#Prop({default: 'Unknow name'})
private displayName!: string;
#Prop({default: 'Unknow username'})
private username!: string;
#Prop()
private role;
}
</script>