Change pipe symbol for select separator

Standart code with pipe seems to be not working. Default theme, no plugins except CF7

found solution

function change_cf7_pipes($tag){
	if ($tag['basetype'] != 'select'){return $tag;}
	$values = [];$labels = [];
	foreach ($tag['raw_values'] as $raw_value){
        $raw_value_parts = explode('|', $raw_value);
		if (count($raw_value_parts) >= 2){
			$values[] = $raw_value_parts[1];
			$labels[] = $raw_value_parts[0];
		}else{
			$values[] = $raw_value;
			$labels[] = $raw_value;
		}
	}
	$tag['values'] = $values;$tag['labels'] = $labels;
	/*Optional but recommended:
		Display labels in mails instead of values
		You can still use values using [_raw_tag] instead of [tag] */
	$reversed_raw_values = array_map(function($raw_value){
		$raw_value_parts = explode('|', $raw_value);
		return implode('|', array_reverse($raw_value_parts));
	}, $tag['raw_values']);
	$tag['pipes'] = new \WPCF7_Pipes($reversed_raw_values);
	return $tag;
}
add_filter('wpcf7_form_tag', 'change_cf7_pipes', 10);