Rest update bug

Hello in ‘includes\contact-form-functions.php’ is this function:

function wpcf7_sanitize_mail( $input, $defaults = array() ) {
	$input = wp_parse_args( $input, array(
		'active' => false,
		'subject' => '',
		'sender' => '',
		'recipient' => '',
		'body' => '',
		'additional_headers' => '',
		'attachments' => '',
		'use_html' => false,
		'exclude_blank' => false,
	) );

	$input = wp_parse_args( $input, $defaults );

wich ignores the ‘$defaults” parameter, because the first ‘wp_parse_args()’ already sets empty default values for $input.
the second time $input is assigned with wp_parse_args() nothing is set.

previus old version of the code works correctly:
http://hookr.io/plugins/contact-form-7/4.7/functions/wpcf7_sanitize_mail/
– first wp_parse_args() $defaults, and second the $input.

because of this the rest function wpcf7_rest_update_contact_form() in ‘includes/rest-api.php’ doesn’t work correctly, if we dont send the mail property this will be update empty either with post or patch.

thanks.