Fallback on empty ParentIndexNumber

Author: Shadowghost

Jellyfin.Plugin.AniDB/Providers/AniDB/Metadata/AniDbEpisodeProvider.cs

@@ -71,7 +71,7 @@ public async Task<MetadataResult<Episode>> GetMetadata(EpisodeInfo info, Cancell
             result.Item = new Episode
             {
                 IndexNumber = info.IndexNumber,
-                ParentIndexNumber = info.ParentIndexNumber
+                ParentIndexNumber = info.ParentIndexNumber ?? 1
             };
 
             result.HasMetadata = true;
@@ -83,7 +83,7 @@ public async Task<MetadataResult<Episode>> GetMetadata(EpisodeInfo info, Cancell
 
         public async Task<IEnumerable<RemoteSearchResult>> GetSearchResults(EpisodeInfo searchInfo, CancellationToken cancellationToken)
         {
-            if (!searchInfo.IndexNumber.HasValue || !searchInfo.ParentIndexNumber.HasValue)
+            if (!searchInfo.IndexNumber.HasValue)
             {
                 return Enumerable.Empty<RemoteSearchResult>();
             }