Make sure JSON data uses latest version/generatedBy when writing.

source/funkin/data/song/SongData.hx

@@ -117,6 +117,9 @@ class SongMetadata implements ICloneable<SongMetadata>
    */
   public function serialize(pretty:Bool = true):String
   {
+    // Update generatedBy and version before writing.
+    updateVersionToLatest();
+
     var ignoreNullOptionals = true;
     var writer = new json2object.JsonWriter<SongMetadata>(ignoreNullOptionals);
     // I believe @:jignored should be ignored by the writer?
@@ -125,6 +128,12 @@ class SongMetadata implements ICloneable<SongMetadata>
     return writer.write(this, pretty ? '  ' : null);
   }
 
+  public function updateVersionToLatest():Void
+  {
+    this.version = SongRegistry.SONG_METADATA_VERSION;
+    this.generatedBy = SongRegistry.DEFAULT_GENERATEDBY;
+  }
+
   /**
    * Produces a string representation suitable for debugging.
    */
@@ -373,6 +382,12 @@ class SongMusicData implements ICloneable<SongMusicData>
     this.variation = variation == null ? Constants.DEFAULT_VARIATION : variation;
   }
 
+  public function updateVersionToLatest():Void
+  {
+    this.version = SongRegistry.SONG_MUSIC_DATA_VERSION;
+    this.generatedBy = SongRegistry.DEFAULT_GENERATEDBY;
+  }
+
   public function clone():SongMusicData
   {
     var result:SongMusicData = new SongMusicData(this.songName, this.artist, this.variation);
@@ -605,11 +620,20 @@ class SongChartData implements ICloneable<SongChartData>
    */
   public function serialize(pretty:Bool = true):String
   {
+    // Update generatedBy and version before writing.
+    updateVersionToLatest();
+
     var ignoreNullOptionals = true;
     var writer = new json2object.JsonWriter<SongChartData>(ignoreNullOptionals);
     return writer.write(this, pretty ? '  ' : null);
   }
 
+  public function updateVersionToLatest():Void
+  {
+    this.version = SongRegistry.SONG_CHART_DATA_VERSION;
+    this.generatedBy = SongRegistry.DEFAULT_GENERATEDBY;
+  }
+
   public function clone():SongChartData
   {
     // We have to manually perform the deep clone here because Map.deepClone() doesn't work.

source/funkin/data/song/importer/ChartManifestData.hx

@@ -61,10 +61,18 @@ class ChartManifestData
    */
   public function serialize(pretty:Bool = true):String
   {
+    // Update generatedBy and version before writing.
+    updateVersionToLatest();
+
     var writer = new json2object.JsonWriter<ChartManifestData>();
     return writer.write(this, pretty ? '  ' : null);
   }
 
+  public function updateVersionToLatest():Void
+  {
+    this.version = CHART_MANIFEST_DATA_VERSION;
+  }
+
   public static function deserialize(contents:String):Null<ChartManifestData>
   {
     var parser = new json2object.JsonParser<ChartManifestData>();

source/funkin/data/stage/StageData.hx

@@ -58,9 +58,17 @@ class StageData
    */
   public function serialize(pretty:Bool = true):String
   {
+    // Update generatedBy and version before writing.
+    updateVersionToLatest();
+
     var writer = new json2object.JsonWriter<StageData>();
     return writer.write(this, pretty ? '  ' : null);
   }
+
+  public function updateVersionToLatest():Void
+  {
+    this.version = StageRegistry.STAGE_DATA_VERSION;
+  }
 }
 
 typedef StageDataCharacters =

source/funkin/ui/debug/charting/handlers/ChartEditorImportExportHandler.hx

@@ -386,12 +386,14 @@ class ChartEditorImportExportHandler
         var variationMetadata:Null<SongMetadata> = state.songMetadata.get(variation);
         if (variationMetadata != null)
         {
+          variationMetadata.version = funkin.data.song.SongRegistry.SONG_METADATA_VERSION;
           variationMetadata.generatedBy = funkin.data.song.SongRegistry.DEFAULT_GENERATEDBY;
           zipEntries.push(FileUtil.makeZIPEntry('${state.currentSongId}-metadata.json', variationMetadata.serialize()));
         }
         var variationChart:Null<SongChartData> = state.songChartData.get(variation);
         if (variationChart != null)
         {
+          variationChart.version = funkin.data.song.SongRegistry.SONG_CHART_DATA_VERSION;
           variationChart.generatedBy = funkin.data.song.SongRegistry.DEFAULT_GENERATEDBY;
           zipEntries.push(FileUtil.makeZIPEntry('${state.currentSongId}-chart.json', variationChart.serialize()));
         }
@@ -401,12 +403,12 @@ class ChartEditorImportExportHandler
         var variationMetadata:Null<SongMetadata> = state.songMetadata.get(variation);
         if (variationMetadata != null)
         {
-          variationMetadata.generatedBy = funkin.data.song.SongRegistry.DEFAULT_GENERATEDBY;
           zipEntries.push(FileUtil.makeZIPEntry('${state.currentSongId}-metadata-$variationId.json', variationMetadata.serialize()));
         }
         var variationChart:Null<SongChartData> = state.songChartData.get(variation);
         if (variationChart != null)
         {
+          variationChart.version = funkin.data.song.SongRegistry.SONG_CHART_DATA_VERSION;
           variationChart.generatedBy = funkin.data.song.SongRegistry.DEFAULT_GENERATEDBY;
           zipEntries.push(FileUtil.makeZIPEntry('${state.currentSongId}-chart-$variationId.json', variationChart.serialize()));
         }