}
$this->siteLoader = require $autloadFilePath;
+ if ($this->siteLoader === false) {
+ // Nothing more to do. See https://github.com/drush-ops/drush/issues/3741.
+ return $this->loader;
+ }
if ($this->siteLoader === true) {
// The autoloader was already required. Assume that Drush and Drupal share an autoloader per
// "Point autoload.php to the proper vendor directory" - https://www.drupal.org/node/2404989