WIP: return empty result

Signed-off-by: Shinya Hayashi <[email protected]>

internal/controller/mantlebackup_controller.go

@@ -404,7 +404,7 @@ func (r *MantleBackupReconciler) replicate(
 	}
 	prepareResult, err := r.prepareForDataSynchronization(ctx, backup, r.primarySettings.Client)
 	if err != nil {
-		return result, err
+		return ctrl.Result{}, err
 	}
 
 	// FIXME: Delete this code after implementing export().