Cannot create a new WP user for IS user when importing from event

[marekdedic]

Specifically happens when the user doesn't have UserName and ParticipantEmail.

This code ejects:

skautis-integration/src/php/src/modules/Register/class-wp-register.php

Lines 166 to 168 in 25344e0

	if ( mb_strlen( $user['UserName'] ) === 0 ) {
	return false;
	}

and this code causes the empty data:

skautis-integration/src/php/src/repository/class-users.php

Lines 215 to 224 in 25344e0

	if ( isset( $participant->PersonEmail ) && ! empty( $participant->PersonEmail ) ) {
	$emails = preg_split( '~(?=\,)~x', $participant->PersonEmail );
	if ( ! empty( $emails ) && isset( $emails[0] ) ) {
	$user->email = $emails[0];
	}
	} else {
	$user->email = '';
	}
	$user->UserName = $user->email;