Fixed: Artist/Album lookup endpoints display error on failure

src/Lidarr.Api.V1/Albums/AlbumLookupModule.cs

@@ -20,14 +20,12 @@ namespace Lidarr.Api.V1.Albums
             Get["/"] = x => Search();
         }
 
-
         private Response Search()
         {
             var searchResults = _searchProxy.SearchForNewAlbum((string)Request.Query.term, null);
-            return MapToResource(searchResults).AsResponse();
+            return MapToResource(searchResults).ToList().AsResponse();
         }
 
-
         private static IEnumerable<AlbumResource> MapToResource(IEnumerable<NzbDrone.Core.Music.Album> albums)
         {
             foreach (var currentAlbum in albums)

src/Lidarr.Api.V1/Artist/ArtistLookupModule.cs

@@ -19,14 +19,12 @@ namespace Lidarr.Api.V1.Artist
             Get["/"] = x => Search();
         }
 
-
         private Response Search()
         {
             var searchResults = _searchProxy.SearchForNewArtist((string)Request.Query.term);
-            return MapToResource(searchResults).AsResponse();
+            return MapToResource(searchResults).ToList().AsResponse();
         }
 
-
         private static IEnumerable<ArtistResource> MapToResource(IEnumerable<NzbDrone.Core.Music.Artist> artist)
         {
             foreach (var currentArtist in artist)