fix: edit customer throws an error

import { Component, ViewChild, EventEmitter, OnInit } from '@angular/core';

import { FormBuilder, FormControl, FormGroup } from '@angular/forms';

import { ActivatedRoute, Router } from '@angular/router';

import { first, map, switchMap } from 'rxjs/operators';

import {

	first,

	map,

	switchMap,

	withLatestFrom,

	catchError,

} from 'rxjs/operators';

import { ToasterService } from 'angular2-toaster';

import { BasicInfoFormComponent } from '../../../../@shared/user/forms';

import { LocationFormComponent } from '../../../../@shared/forms/location';

import { UserRouter } from '@modules/client.common.angular2/routers/user-router.service';

import IGeoLocation from '@modules/server.common/interfaces/IGeoLocation';

import User from '@modules/server.common/entities/User';

import { empty } from 'rxjs';

@Component({

	templateUrl: './customer-edit.component.html',

	);

	readonly customer$ = this.customerId$.pipe(

		catchError((err) => {

			return empty();

		}),

		switchMap((id) => {

			return this._customerRouter.get(id).pipe(first());

		})

	ngOnInit() {

		this.customer$

			.withLatestFrom(this.customerId$)

			.pipe(withLatestFrom(this.customerId$))

			.subscribe(([customer, id]) => {

				if (!customer) {

					this._toasterService.pop(