dynamicly change the select options does not work in the right way

[yupengfei]

Bug Report

Ionic version:

[x] 4.x

Current behavior:

  updateOptions() {
    
    this.testNodes =  [
    {
      name: "gg",
      value: "GG",
      selected: true,
    },
    ]
  }

After updateOptions runs, I hope the select overlay shows only "GG".
Expected behavior:

The select overlay shows both "GG" and "BB".

Steps to reproduce:

Related code:
A sample application via GitHub

import { Component, State } from '@stencil/core';

class Node {
  name: string;
  value: string;
  selected: boolean = false;
}
@Component({
  tag: 'app-home',
  styleUrl: 'app-home.css'
})
export class AppHome {


  @State() testNodes: Node[] = [];


  asyncGet(): Promise<any> {

    let testNodes = [{
      name: "aa",
      value: "AA",
      selected: false,
    }, {
      name: "bb",
      value: "BB",
      selected: true,
    },
    ]
    let promise = new Promise((resolve, _) => {
      setTimeout(() => resolve({  "testNodes": testNodes }), 1000)

    })
    return promise;
  }
  componentDidLoad() {
    this.asyncGet().then(result => {
      console.log(result.defaultNode);

      this.testNodes = result.testNodes;
    })
  }

  updateOptions() {
    
    this.testNodes =  [
    {
      name: "gg",
      value: "GG",
      selected: true,
    },
    ]
  }
  render() {
    return (
      <div>
        <ion-button onClick={()=>this.updateOptions()}>ddd</ion-button>
        

        <ion-select >
          {
            this.testNodes.map((node) =>
              <ion-select-option value={node} selected={node.selected} >{node.value}</ion-select-option>
            )
          }
        </ion-select>
      </div>

    );
  }
}

Other information:

Ionic info:

insert the output from ionic info here

[manucorporat]

Thanks for the issue, but it's a duplicate of #16453

[ionitron-bot]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.