Date element validation overwritten

Hi,

I was trying to add some additional validation to a webform date field using the #element_validate attribute, but it appears that when the field is going through the webform_expand_date function (in components/date.inc) called by #process the validation is set to
$element['#element_validate'] = array('webform_validate_date');

I understand that you wanted to replace some Drupal validation with webform-specific validation, but this is not really nice.. Some observations:
1. When loading the form, the date element actually has "webform_validate_date" set as the default value for the #element_validate property, so maybe that call in the processing function is outdated?
2. If you insist that it's necessary, could you please remove whatever validation you don't want explicitly from the array and add the webform validation using:
$element['#element_validate'][] = 'webform_validate_date';

This would keep the field in step with the rest of the form API and would be very helpful and appreciated!

Let me know if you need further details.

Thanks in advance,

Martin