code: @Override
      public Application getApplication(String appName) {
          boolean disableTransparentFallback = serverConfig.disableTransparentFallbackToOtherRegion();
          return this.getApplication(appName, !disableTransparentFallback);
      }
docs: Returns the given app that is in this instance only, falling back to other regions transparently only
  if specified in this client configuration.
  
  @param appName the application name of the application
  @return the application
  
  @see com.netflix.discovery.shared.LookupService#getApplication(java.lang.String)