/**
  * @param $bug_id
  * @param $version_date
  * @return array
  */
 function get_bug_description($bug_id, $version_date)
 {
     $specmanagement_database_api = new specmanagement_database_api();
     $description_value = null;
     $bug = bug_get($bug_id);
     $value_type = 1;
     $description_value = $specmanagement_database_api->calculate_last_text_fields($bug_id, $version_date, $value_type);
     if (strlen($description_value) == 0) {
         $description_value = $bug->description;
     }
     return $description_value;
 }