当我从tab1的子页跳到tab2的子页时，离子后退按钮不会将我带到上一页

import { NavController } from '@ionic/angular';
import { Tab2Page } from '../tab2/tab2.page';

@Component({
  selector: 'app-tab1-child',
  templateUrl: 'tab1-child.page.html',
  styleUrls: ['tab1-child.page.scss'],
})
export class Tab1ChildPage {

  constructor(private navCtrl: NavController) {}

  goToTab2ChildPage() {
    this.navCtrl.navigateForward('/tabs/tab2/tab2-child');
  }

}

import { NavController } from '@ionic/angular';

@Component({
  selector: 'app-tab2-child',
  templateUrl: 'tab2-child.page.html',
  styleUrls: ['tab2-child.page.scss'],
})
export class Tab2ChildPage {

  constructor(private navCtrl: NavController) {}

  goBack() {
    this.navCtrl.navigateBack('/tabs/tab1/tab1-child');
  }

}