Reactive forms, `updateOn: 'blur'` - control getting dirty when blurring despite no changes

[michael-koch787]

Create binding via reactive forms, set updateOn: blur.

formGroup = new FormGroup({
    control: new FormControl('text', { updateOn: 'blur' }),
  },
  { updateOn: 'blur' }
);

Focusing & blurring marks control as dirty despite no changes being made.
Example: https://stackblitz.com/edit/stackblitz-starters-tiunc5dt?file=src%2Fmain.ts

I think I found the cause:
If I create a FormControl with an initial value, that value is written to initalValue

public writeValue(value: string | null): void {
  if (this._editor && this._editor.initialized) {
    this._editor.setContent(isNullOrUndefined(value) ? '' : value);
  } else {
    this.initialValue = value === null ? undefined : value;
  }
}

Later in the initEditor method emitOnChange is called if an initialValue is set.
Therefore the control gets marked as dirty.

if (typeof this.initialValue === 'string') {
  this.ngZone.run(() => {
    editor.setContent(this.initialValue as string);
    if (editor.getContent() !== this.initialValue) {
      this.emitOnChange(editor);           // <- that's the problem I guess
    }
    if (this.onInitNgModel !== undefined) {
      this.onInitNgModel.emit(editor as unknown as EventObj<any>);
    }
  });
}

What is the expected behavior?
Control should not be marked as dirty.

Which versions of TinyMCE/TinyMCE-Angular, and which browser / OS are affected by this issue? Did this work in previous versions of TinyMCE or TinyMCE-Angular?
"@angular/core": "^19.0.0"
"@tinymce/tinymce-angular": "^8.0.1"

[tiny-stale-bot]

This issue is stale because it has been open 365 days with no activity. Please comment if you wish to keep this issue open or it will be closed in 30 days.

[tiny-stale-bot]

This issue was closed because it has been stalled for 30 days with no activity.