Fixed: Manual Import could lead to duplicate notifications

Closes #7922

src/NzbDrone.Core/MediaFiles/EpisodeImport/Manual/ManualImportService.cs

@@ -483,6 +483,7 @@ namespace NzbDrone.Core.MediaFiles.EpisodeImport.Manual
 
             var imported = new List<ImportResult>();
             var importedTrackedDownload = new List<ManuallyImportedFile>();
+            var importedUntrackedDownload = new List<ImportResult>();
 
             for (var i = 0; i < message.Files.Count; i++)
             {
@@ -545,7 +546,10 @@ namespace NzbDrone.Core.MediaFiles.EpisodeImport.Manual
 
                 if (trackedDownload == null)
                 {
-                    imported.AddRange(_importApprovedEpisodes.Import(new List<ImportDecision> { importDecision }, !existingFile, null, message.ImportMode));
+                    var importResult = _importApprovedEpisodes.Import(new List<ImportDecision> { importDecision }, !existingFile, null, message.ImportMode);
+
+                    imported.AddRange(importResult);
+                    importedUntrackedDownload.AddRange(importResult);
                 }
                 else
                 {
@@ -566,7 +570,7 @@ namespace NzbDrone.Core.MediaFiles.EpisodeImport.Manual
                 _logger.ProgressTrace("Manually imported {0} files", imported.Count);
             }
 
-            var untrackedImports = imported.Where(i => i.Result == ImportResultType.Imported && importedTrackedDownload.FirstOrDefault(t => t.ImportResult != i) == null).ToList();
+            var untrackedImports = importedUntrackedDownload.Where(i => i.Result == ImportResultType.Imported).ToList();
 
             if (untrackedImports.Any())
             {

src/Sonarr.Api.V3/ManualImport/ManualImportController.cs

@@ -8,7 +8,6 @@ using NzbDrone.Core.Qualities;
 using Sonarr.Api.V3.CustomFormats;
 using Sonarr.Api.V3.Episodes;
 using Sonarr.Http;
-using Sonarr.Http.REST;
 
 namespace Sonarr.Api.V3.ManualImport
 {
@@ -38,11 +37,6 @@ namespace Sonarr.Api.V3.ManualImport
         [Consumes("application/json")]
         public object ReprocessItems([FromBody] List<ManualImportReprocessResource> items)
         {
-            if (items is { Count: 0 })
-            {
-                throw new BadRequestException("items must be provided");
-            }
-
             foreach (var item in items)
             {
                 var processedItem = _manualImportService.ReprocessItem(item.Path, item.DownloadId, item.SeriesId, item.SeasonNumber, item.EpisodeIds ?? new List<int>(), item.ReleaseGroup, item.Quality, item.Languages, item.IndexerFlags, item.ReleaseType);