unmaskedValue for DateMask returns .. if only mask is present

[MysterieDev]

Describe the bug
I discovered that when i checked the unmasked value for length and was suprised the empty mask with only the pattern returns '..' . Is this intentional?

To Reproduce
Make date input and get unmaskedValue of Mask after init

Expected behavior
the unmasked value should probably be an empty string

Additional context

in my project i have a function unmasking the value like this:
/** replace all underscores followed by dots,then replaces all underscores
*
*/
private unmaskValue(value: string) {
return value.replaceAll(/.+/g, '').replaceAll('', '');
}

that first makes a __.__.____ string go to this state: _____ and these get replace clean by the second replaceAll.

Thank you for your work.

[MysterieDev]

I'll add a working reproduction sample when I got the time!

[MysterieDev]

here is a stackblitz link that is supposed to explain the situation better.
https://stackblitz.com/edit/vitejs-vite-r5jzc8?file=main.js&terminal=dev

When experimenting, i've notice that masked._value shows the actual value that i was expecting form unmaskedValue of the IMaskInstance. However it seems that if it is a bit flimsy when typing the last character of the date.