IE inconsitent formcontrol behaviour (touched, dirty, pristine)

[robindijkhof]

Reproduction

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Steps to reproduce:

1. https://github.com/robindijkhof/materialformcontrol

Basically I have the following formcontrols

<form>
    <input  [placeholder]="'Favorite food'" [formControl]="form0">
</form>

<form>
  <mat-form-field>
    <input matInput placeholder="Favorite food" [formControl]="form1">
  </mat-form-field>
</form>

<form>
  <mat-form-field>
    <input matInput [placeholder]="'Favorite food'" [formControl]="form2">
  </mat-form-field>
</form>

<form>
  <mat-form-field>
    <input matInput [placeholder]="'Favoritë food'" [formControl]="form3">
  </mat-form-field>
</form>

Expected Behavior

I'd expect touched, dirty and pristine would be equal over all form controls.

Actual Behavior

Environment

• Angular: 7.2.13
• CDK/Material: 7.3.7
• Browser(s): IE
• Operating System (e.g. Windows, macOS, Ubuntu): Windows

[macjohnny]

might be related to #3256
and angular/angular#14667

[robindijkhof]

Looks like it. Though, did not read anything about that ë

[macjohnny]

@robindijkhof the ë issue is very strange indeed

[jelbourn]

Duplicate of angular/angular#14440

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