UIState Reloading Fix (#469)

* Reloading UIStates does not softlock anymore

* fix

* Removed all prev changes and use a better method

* Switch to tabs

Author: FuroYT

source/funkin/backend/MusicBeatState.hx

@@ -93,6 +93,9 @@ class MusicBeatState extends FlxState implements IBeatReceiver
 
 	public var scriptsAllowed:Bool = true;
 
+	public static var lastScriptName:String = null;
+	public static var lastStateName:String = null;
+
 	public var scriptName:String = null;
 
 	public static var skipTransOut:Bool = false;
@@ -108,7 +111,12 @@ class MusicBeatState extends FlxState implements IBeatReceiver
 	public function new(scriptsAllowed:Bool = true, ?scriptName:String) {
 		super();
 		this.scriptsAllowed = #if SOFTCODED_STATES scriptsAllowed #else false #end;
-		this.scriptName = scriptName;
+
+		if(lastStateName != (lastStateName = Type.getClassName(Type.getClass(this)))) {
+			lastScriptName = null;
+		}
+		this.scriptName = scriptName != null ? scriptName : lastScriptName;
+		lastScriptName = this.scriptName;
 	}
 
 	function loadScript() {