Guard against blank names

MediaBrowser.Providers/Plugins/AudioDb/AudioDbArtistProvider.cs

@@ -82,7 +82,7 @@ namespace MediaBrowser.Providers.Plugins.AudioDb
                     }
                 }
 
-                return Enumerable.Empty<RemoteSearchResult>();
+                return [];
             }
 
             // Finally, search by name.
@@ -92,7 +92,7 @@ namespace MediaBrowser.Providers.Plugins.AudioDb
                 return artists.Select(ToRemoteSearchResult);
             }
 
-            return Enumerable.Empty<RemoteSearchResult>();
+            return [];
         }
 
         private async Task<List<Artist>> FetchArtists(string url, CancellationToken cancellationToken)

MediaBrowser.Providers/Plugins/MusicBrainz/MusicBrainzArtistProvider.cs

@@ -40,6 +40,11 @@ public class MusicBrainzArtistProvider : IRemoteMetadataProvider<MusicArtist, Ar
             return GetResultFromResponse(artistResult).SingleItemAsEnumerable();
         }
 
+        if (string.IsNullOrWhiteSpace(searchInfo.Name))
+        {
+            return [];
+        }
+
         var artistSearchResults = await query.FindArtistsAsync($"\"{searchInfo.Name}\"", null, null, false, cancellationToken)
             .ConfigureAwait(false);
         if (artistSearchResults.Results.Count > 0)
@@ -58,7 +63,7 @@ public class MusicBrainzArtistProvider : IRemoteMetadataProvider<MusicArtist, Ar
             }
         }
 
-        return Enumerable.Empty<RemoteSearchResult>();
+        return [];
     }
 
     private IEnumerable<RemoteSearchResult> GetResultsFromResponse(IEnumerable<ISearchResult<IArtist>>? releaseSearchResults)