/**
  * Override a configuration key in this scope, setting it to a new value.
  *
  * @param  string Key to override.
  * @param  wild   New value.
  * @return this
  *
  * @task override
  */
 public function overrideEnvConfig($key, $value)
 {
     PhabricatorEnv::overrideEnvConfig($this->key, $key, $value);
     return $this;
 }