New: Setting monitor None when adding arist will unmonitor artist

src/Lidarr.Api.V1/AlbumStudio/AlbumStudioModule.cs

@@ -33,6 +33,11 @@ namespace Lidarr.Api.V1.AlbumStudio
                     artist.Monitored = s.Monitored.Value;
                 }
 
+                if (request.MonitoringOptions != null && request.MonitoringOptions.Monitor == MonitorTypes.None)
+                {
+                    artist.Monitored = false;
+                }
+
                 _albumMonitoredService.SetAlbumMonitoredStatus(artist, request.MonitoringOptions);
             }
 

src/NzbDrone.Core/Music/AddArtistService.cs

@@ -121,6 +121,11 @@ namespace NzbDrone.Core.Music
             newArtist.SortName = ArtistNameNormalizer.Normalize(newArtist.Metadata.Value.Name, newArtist.Metadata.Value.ForeignArtistId);
             newArtist.Added = DateTime.UtcNow;
 
+            if (newArtist.AddOptions != null && newArtist.AddOptions.Monitor == MonitorTypes.None)
+            {
+                newArtist.Monitored = false;
+            }
+
             var validationResult = _addArtistValidator.Validate(newArtist);
 
             if (!validationResult.IsValid)