Since the Beta 4, my views don't update

Ionic Framework ionic-v3
5

I tried something :

I created a project with the following command from the Getting Started :
ionic start MyIonic2Project tutorial --v2 --ts

I added to the tutorial project few lines of code that I use in my main project to see if I will get the same issue :

1 - hello-ionic.html :

<ion-input type="text" [(ngModel)]="t1" style="background-color:lightblue;"></ion-input>
<ion-input type="text" [(ngModel)]="t2" style="background-color:lightgreen;"></ion-input>

2 - hello-ionic.ts :

export class HelloIonicPage {

  private t1: string;
  private t2: string;

  private db: Storage = new Storage(SqlStorage);
  
  constructor() {

    this.db.get('thing').then((thing: string) => {
        this.t1 = "test one";
    });

    this.t2 = "test two";

  }

}

Here is the result :

image
image1018×322 13.7 KB

We don’t see "test one" in the first input.
However, if I put the focus on the first input "test one" will appear.

I got this issue when I have updated my project to the beta 4.

Someone can explain why please ?

(Sorry for my english :blush: )