fix: Prevent error when getting fake out death while testing in Chart Editor

Author: NotHyper-474

preload/scripts/characters/bf.hxc

@@ -23,15 +23,15 @@ class BoyfriendCharacter extends MultiSparrowCharacter {
 		FunkinSound.playOnce(Paths.sound("gameplay/gameover/fakeout_death"), 1.0);
 
 		var bfFakeout:FlxAtlasSprite = new FlxAtlasSprite(this.x - 440, this.y - 240, Paths.animateAtlas("characters/bfFakeOut", "shared"));
-    FlxG.state.subState.add(bfFakeout);
+		GameOverSubState.instance.add(bfFakeout);
 		bfFakeout.zIndex = 1000;
     bfFakeout.playAnimation('');
 		// We don't want people to miss this.
-		FlxG.state.subState.mustNotExit = true;
+		GameOverSubState.instance.mustNotExit = true;
     bfFakeout.onAnimationComplete.add(() -> {
       bfFakeout.visible = false;
       this.visible = true;
-			FlxG.state.subState.mustNotExit = false;
+			GameOverSubState.instance.mustNotExit = false;
       this.playAnimation('firstDeath', true, true);
       // Play the "blue balled" sound. May play a variant if one has been assigned.
       GameOverSubState.playBlueBalledSFX();