Date Picker: Truncated year field

Now here is an interesting development:

I am using the date picker element for a contract form.  Since it's a contract, the date of it being signed is set to the CURRENT DATE and is READ-ONLY.  However, I find that when I change the date to READ-ONLY (with LITE MODE OFF or ON),  it truncates the YEAR field and does not display the year.  BUT, if you add the TIME field, the YEAR field will re-appear.  It exhibits this behavior in its standard size or when shrunk.  

Any ideas on this or is it a real bug?

You can play with the one in the URL...don't really need that one.

The issue might be related to your form theme styles.

You can add the next CSS to fix this for a date picker field with the id_39 ID.

#id_39 .form-sub-label-container {
min-width: 28% !important;
}