Reset reorder

Hello,

I’m trying to cancel any modification, but the reorder of my items keeps modified after the cancelUpdate()

Can you tell me how to achieve this ? Thank you

<ion-header>
  <ion-toolbar>
    <ion-buttons slot="secondary">
      <ion-button color='primary'>
        Valider
      </ion-button>
    </ion-buttons>
    <ion-buttons slot="primary">
      <ion-button color="danger" (click)="cancelUpdate()">
        Annuler
      </ion-button>
    </ion-buttons>
  </ion-toolbar>
</ion-header>

<ion-content>

  <ion-reorder-group disabled="false" (ionItemReorder)="onItemReorder($event)">
    <ion-item-sliding *ngFor="let contact of newCtc">
      <ion-item>
        <ion-label class="ion-text-wrap">
          <ion-text color="primary">
            {{contact.nom}}
          </ion-text>
          <p *ngIf='contact.qualite'>Qualité: <b>{{contact.qualite}}</b></p>
          <p *ngIf='contact.telephone'>Téléphone: <b>{{contact.telephone}}</b></p>
          <p *ngIf='contact.telephone1'>Téléphone 1: <b>{{contact.telephone1}}</b></p>
          <p *ngIf='contact.email'>Email: <b>{{contact.email}}</b></p>
        </ion-label>
        <ion-reorder slot="end"></ion-reorder>
      </ion-item>
      <ion-item-options side="end">
        <ion-item-option (click)="updateItm(contact)" color='primary' style="min-width: 105px;">
          Modifier
        </ion-item-option>
        <ion-item-option (click)="removeItm(contact)" color='danger' style="min-width: 105px;">
          Supprimer
        </ion-item-option>
      </ion-item-options>
    </ion-item-sliding>
  </ion-reorder-group>

</ion-content>

  ngOnInit() {
    this.newCtc = this.infoSite.contact.map((x) => x);
  }

  public onItemReorder({ detail }) {
    detail.complete(true);
  }

  removeItm(contact) {
    this.myFunctions.confirmationAlert(
      "Supprimer le contact ?",
      'Voulez-vous vraiment supprimer le contact ' + contact.nom + ' ?',
    ).then(confirm => {
      if (confirm) {
        this.newCtc.splice(this.newCtc.indexOf(contact), 1);
      }
    });
  }

  cancelUpdate() {
    this.myFunctions.confirmationAlert(
      "Annuler",
      'Voulez-vous vraiment annuler les modifications en cours ?',
    ).then(confirm => {
      if (confirm) {
        this.newCtc = this.infoSite.contact.map((x) => x);
      }
    });
  }

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