we always have a double space between first and last name if there is no m_name
could you change getFullName Function to this in OrderTable.php in core in next version?
public function getFullName($prefix = '') {
$JshopConfig = JSFactory::getConfig();
$of = $JshopConfig->ordering_full_name;
$name_parts = array_filter([
$this->{$prefix . $of[0]},
$this->{$prefix . $of[1]},
$this->{$prefix . $of[2]}
]);
$full_name = implode(' ', $name_parts);
return $full_name;
}



