when click file to download, double tap reload icon has no effact. #531

iOSClient/AppDelegate.m

@@ -1329,9 +1329,9 @@
     }
     else if ([[_listChangeTask objectForKey:fileID] isEqualToString:@"reloadDownload"]) {
         
-        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.1 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
-            [[CCNetworking sharedNetworking] downloadFile:metadata.fileName fileID:fileID serverUrl:serverUrl selector:metadata.sessionSelector selectorPost:metadata.sessionSelectorPost session:k_download_session taskStatus:k_taskStatusResume delegate:self.activeMain];
-        });
+        [[NCManageDatabase sharedInstance] setMetadataSession:@"" sessionError:@"" sessionSelector:@"" sessionSelectorPost:@"" sessionTaskIdentifier:k_taskIdentifierDone predicate:[NSPredicate predicateWithFormat:@"fileID = %@", fileID]];
+        
+        [[CCNetworking sharedNetworking] downloadFile:metadata.fileName fileID:fileID serverUrl:serverUrl selector:metadata.sessionSelector selectorPost:metadata.sessionSelectorPost session:k_download_session taskStatus:k_taskStatusResume delegate:self.activeMain];
     }
     else if ([[_listChangeTask objectForKey:metadata.fileID] isEqualToString:@"cancelUpload"]) {