                 
                 let zoomScale = MKZoomScaleForMapView(self)
                 
-                refreshOperation = BlockOperation { [weak self] _ in
+                refreshOperation = BlockOperation { [weak self] in
                     guard let strongSelf = self else {
                         return
                     }

                }
            }
            else {
                refreshOperation = BlockOperation { [weak self] _ in
                    guard let strongSelf = self else {
                        return
                    }

    
    fileprivate func addAnnotationsToMapView(_ annotations: Set<ABFAnnotation>) {
        let safeObjects = self.fetchedResultsController.safeObjects
        DispatchQueue.main.async { [weak self] in
            guard let strongSelf = self else {
                return
            }
