fix last scan check (#1150)

CHANGELOG.md

@@ -13,6 +13,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix playback of content with undefined colorspace
 - Fix NVIDIA color normalization with VP9 sources
 - Fix fallback filler looping
+- Fix bug where some libraries would never scan
 
 ### Changed
 - Merge generated `Other Video` folder tags with tags from sidecar NFO

ErsatzTV.Application/MediaSources/Commands/CallLocalLibraryScannerHandler.cs

@@ -71,9 +71,11 @@ public class CallLocalLibraryScannerHandler : CallLibraryScannerHandler<IScanLoc
             .Filter(lp => lp.LibraryId == request.LibraryId)
             .ToListAsync();
         
-        return libraryPaths.Any()
+        var minDateTime = libraryPaths.Any()
             ? libraryPaths.Min(lp => lp.LastScan ?? SystemTime.MinValueUtc)
             : SystemTime.MaxValueUtc;
+
+        return new DateTimeOffset(minDateTime, TimeSpan.Zero);
     }
 
     protected override bool ScanIsRequired(