FormControl triggers statusChanges/valueChanges continuously when minDate and maxDate are specified

[MBALDONCINI]

If the timepicker component is used not in template driven forms mode (i.e. not with ngModel binding but with an input formControl), the formControl status changes are always triggered although the value does not change.
This happens only if the minDate and maxDate are specified.

In html template
<input [class.color-transparent]="dialogOpen == true && !originalValue" matInput placeholder="{{placeholder | translate}}" [formControl]="timeFormControl" (timeChange)="focusIn == false ? timeChangeHandler('timechange') : ''" (invalidInput)="onInvalid($event)" (focusin)="focusIn = true" (focusout)="focusIn = false; timeChangeHandler('focus')" #t="matTimepicker" matTimepicker mode="24h" okLabel="{{okLabel | translate}}" cancelLabel="{{cancelLabel | translate}}" [disableDialogOpenOnClick]="true" [minDate]="minDate" [maxDate]="maxDate" [required]="required" >

In ts
@input() timeFormControl: FormControl = new FormControl(null);

` ngOnInit() {
moment.locale(this.translate.currentLang);

this.timeFormControl.statusChanges.subscribe((status : any) => {
  console.log("status changes ", status);
})

}`
The same happens for the valueChanges observable

Would it also be possible to accept undefined minDate and maxDate?

Thank you.