I have upgraded my project from v15 to Angular v18/PrimeNG v17 and in my component:

                      <p-calendar
                        dateFormat="yy-mm-dd"
                        formControlName="finish_date"
                        [minDate]="today"
                      >
                      </p-calendar>

when I have date saved in DB and it is today or in the past, the field stays empty.

I want to minDate only for new inputs, but the field should display dates even in the past if already saved.