Ignore duplicates when using history to identify an existing downloaditem.

src/NzbDrone.Core/Download/TrackedDownloads/TrackedDownloadService.cs

@@ -78,7 +78,7 @@ namespace NzbDrone.Core.Download.TrackedDownloads
                         parsedEpisodeInfo = Parser.Parser.ParseTitle(firstHistoryItem.SourceTitle);
                         if (parsedEpisodeInfo != null)
                         {
-                            trackedDownload.RemoteEpisode = _parsingService.Map(parsedEpisodeInfo, firstHistoryItem.SeriesId, historyItems.Select(h => h.EpisodeId));
+                            trackedDownload.RemoteEpisode = _parsingService.Map(parsedEpisodeInfo, firstHistoryItem.SeriesId, historyItems.Where(v => v.EventType == HistoryEventType.Grabbed).Select(h => h.EpisodeId).Distinct());
                         }
                     }
                 }