Fix chart(er)

The charter is literally never ever set in the new or clone function of the songMetadata. HOW????

Author: Lasercar

source/funkin/data/song/SongData.hx

@@ -68,11 +68,12 @@ class SongMetadata implements ICloneable<SongMetadata>
   @:jignored
   public var variation:String;
 
-  public function new(songName:String, artist:String, ?variation:String)
+  public function new(songName:String, artist:String, ?charter:String, ?variation:String)
   {
     this.version = SongRegistry.SONG_METADATA_VERSION;
     this.songName = songName;
     this.artist = artist;
+    this.charter = (charter == null) ? null : charter;
     this.timeFormat = 'ms';
     this.divisions = null;
     this.offsets = new SongOffsets();
@@ -96,7 +97,7 @@ class SongMetadata implements ICloneable<SongMetadata>
    */
   public function clone():SongMetadata
   {
-    var result:SongMetadata = new SongMetadata(this.songName, this.artist, this.variation);
+    var result:SongMetadata = new SongMetadata(this.songName, this.artist, this.charter, this.variation);
     result.version = this.version;
     result.timeFormat = this.timeFormat;
     result.divisions = this.divisions;
@@ -139,7 +140,7 @@ class SongMetadata implements ICloneable<SongMetadata>
    */
   public function toString():String
   {
-    return 'SongMetadata(${this.songName} by ${this.artist}, variation ${this.variation})';
+    return 'SongMetadata(${this.songName} by ${this.artist} and ${this.charter}, variation ${this.variation})';
   }
 }
 

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

@@ -1168,6 +1168,10 @@ class ChartEditorDialogHandler
     if (dialogSongArtist == null) throw 'Could not locate dialogSongArtist TextField in Add Variation dialog';
     dialogSongArtist.value = state.currentSongMetadata.artist;
 
+    var dialogSongCharter:Null<TextField> = dialog.findComponent('dialogSongCharter', TextField);
+    if (dialogSongCharter == null) throw 'Could not locate dialogSongCharter TextField in Add Variation dialog';
+    dialogSongCharter.value = state.currentSongMetadata.charter;
+
     var dialogStage:Null<DropDown> = dialog.findComponent('dialogStage', DropDown);
     if (dialogStage == null) throw 'Could not locate dialogStage DropDown in Add Variation dialog';
     var startingValueStage = ChartEditorDropdowns.populateDropdownWithStages(dialogStage, state.currentSongMetadata.playData.stage);