fix playlist preview (#2457)

CHANGELOG.md

@@ -73,6 +73,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix extracted text subtitle playback from media servers
 - Fix extracted text subtitles getting into invalid state after media server deep scans
   - Targeted deep scans will now extract text subtitles for the scanned show
+- Fix playlist preview
 
 ### Changed
 - Filler presets: use separate text fields for `hours`, `minutes` and `seconds` duration

ErsatzTV.Application/MediaCollections/Commands/PreviewPlaylistPlayoutHandler.cs

@@ -38,6 +38,7 @@ public class PreviewPlaylistPlayoutHandler(
             {
                 Items = [MapToScheduleItem(request)]
             },
+            ProgramScheduleAnchors = [],
             ProgramScheduleAlternates = [],
             FillGroupIndices = [],
             Templates = []
@@ -48,7 +49,7 @@ public class PreviewPlaylistPlayoutHandler(
             Option<Deco>.None,
             playout.Items,
             playout.Templates.ToList(),
-            new ProgramSchedule(),
+            playout.ProgramSchedule,
             playout.ProgramScheduleAlternates.ToList(),
             playout.PlayoutHistory.ToList(),
             TimeSpan.Zero);