fix subtitle title updates (#2604)

CHANGELOG.md

@@ -34,6 +34,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix error/offline screen generation
 - Fix subtitle title sync from Jellyfin libraries
   - Deep scans will be required to update subtitle titles on existing media items
+- Fix saving subtitle title changes to the database
+  - This fixes e.g. where stream selection would continue to use the original title
+  - This applies to all libraries (local and media server) and may require deep scans to fix
 
 ### Changed
 - Use smaller batch size for search index updates (100, down from 1000)

ErsatzTV.Infrastructure/Data/Repositories/MetadataRepository.cs

@@ -717,6 +717,7 @@ public class MetadataRepository(IDbContextFactory<TvContext> dbContextFactory) :
                     existingSubtitle.SubtitleKind = incomingSubtitle.SubtitleKind;
                     existingSubtitle.Codec = incomingSubtitle.Codec;
                     existingSubtitle.DateUpdated = incomingSubtitle.DateUpdated;
+                    existingSubtitle.Title = incomingSubtitle.Title;
 
                     dbContext.Entry(existingSubtitle).State = EntityState.Modified;
                 }