checked attr of mat-checkbox does not reflect the bound variable

I use a <mat-checkbox> and I bind its checked attr to a inequality test. I also catch the change event and so, it is possible to try to check the checkbox but the change handler rejects it.

HTML

<mat-checkbox [checked]="list.private === false" (change)="changeListVisibility(list)"></mat-checkbox>

TS

changeListVisibility(list) {
  if(/* some test */) {
    return; // do not accept the change
  } else {
    list.private = !list.private;
  }
}

The problem is that, even if the change handler rejects the change, the checkbox aspect will be like it has been accepted... (eg. the checkbox is unchecked -> the user clicks -> the change is rejected -> the checkbox will be checked).