code: func (actor Actor) ignoreSameStackGUID(config ApplicationConfig, v2App v2action.Application) v2action.Application {
  	if config.CurrentApplication.StackGUID == config.DesiredApplication.StackGUID {
  		v2App.StackGUID = ""
  	}
  
  	return v2App
  }
docs: // Apps updates with both docker image and stack guids fail. So do not send
  // StackGUID unless it is necessary.