Hi pdfjs team,

Please find attach a really simple pdf file to reproduce the issue.
[Date.pdf](https://github.com/mozilla/pdf.js/files/8242310/Date.pdf)
This pdf contains 4 date fields, One with a default format (dd/mm/yyyy) and the 3 others with custom formats:

    -  dd
    -  mm
    -  yyyy

The expected behavior is that whenever I fill dd field with 16 for instance, then when i focus out that field the value displayed is 16 but I get 01.

This happens for dd field and mm but it's working fine for dd/mm/yyyy and yyyy fields.

The initial values of the pdf are properly displayed, this happens only if I focus one of those fields.

Thank you for your time

Best regards.

return event.target ? `[ ${event.target.name} ]` : "";
  }
  _parseDate(cFormat, cDate) {
    const ddate = Date.parse(cDate);
    if (isNaN(ddate)) {
      try {
        return this._util.scand(cFormat, cDate);
      } catch (error) {
        return null;
      }
    } else {
      return new Date(ddate);
    }
  }
  AFMergeChange(event = globalThis.event) {