the game will now create a new clg when entering the main view

Projekte/mdga/client/src/main/java/pp/mdga/client/MdgaApp.java

@@ -84,7 +84,7 @@ public class MdgaApp extends SimpleApplication {
     /**
      * The client game logic.
      */
-    private final ClientGameLogic clientGameLogic;
+    private ClientGameLogic clientGameLogic;
 
     private ExecutorService executor;
 
@@ -204,6 +204,7 @@ public void enter(MdgaState state) {
         switch (state) {
             case MAIN:
                 view = mainView;
+                clientGameLogic.clear();
                 break;
             case LOBBY:
                 view = lobbyView;