Fixed: Retain user settings not-affiliated with Prowlarr

src/NzbDrone.Core/Applications/Readarr/Readarr.cs

@@ -182,6 +182,9 @@ namespace NzbDrone.Core.Applications.Readarr
                         // Retain user tags not-affiliated with Prowlarr
                         readarrIndexer.Tags.UnionWith(remoteIndexer.Tags);
 
+                        // Retain user settings not-affiliated with Prowlarr
+                        readarrIndexer.DownloadClientId = remoteIndexer.DownloadClientId;
+
                         // Update the indexer if it still has categories that match
                         _readarrV1Proxy.UpdateIndexer(readarrIndexer, Settings);
                     }

src/NzbDrone.Core/Applications/Readarr/ReadarrIndexer.cs

@@ -17,6 +17,7 @@ namespace NzbDrone.Core.Applications.Readarr
         public string Implementation { get; set; }
         public string ConfigContract { get; set; }
         public string InfoLink { get; set; }
+        public int? DownloadClientId { get; set; }
         public HashSet<int> Tags { get; set; }
         public List<ReadarrField> Fields { get; set; }
 

src/NzbDrone.Core/Applications/Whisparr/Whisparr.cs

@@ -182,6 +182,9 @@ namespace NzbDrone.Core.Applications.Whisparr
                         // Retain user tags not-affiliated with Prowlarr
                         whisparrIndexer.Tags.UnionWith(remoteIndexer.Tags);
 
+                        // Retain user settings not-affiliated with Prowlarr
+                        whisparrIndexer.DownloadClientId = remoteIndexer.DownloadClientId;
+
                         // Update the indexer if it still has categories that match
                         _whisparrV3Proxy.UpdateIndexer(whisparrIndexer, Settings);
                     }

src/NzbDrone.Core/Applications/Whisparr/WhisparrIndexer.cs

@@ -17,6 +17,7 @@ namespace NzbDrone.Core.Applications.Whisparr
         public string Implementation { get; set; }
         public string ConfigContract { get; set; }
         public string InfoLink { get; set; }
+        public int? DownloadClientId { get; set; }
         public HashSet<int> Tags { get; set; }
         public List<WhisparrField> Fields { get; set; }