Fix small fightstate bug

Signed-off-by: Lixfel <agga-games@gmx.de>

FightSystem_Main/src/de/steamwar/fightsystem/commands/GUI.java

@@ -153,7 +153,8 @@ public class GUI {
             FightTeam fightTeam = Fight.getPlayerTeam(p);
             if(fightTeam == null)
                 return;
-            fightTeam.setSchematic(s);
+            if(FightSystem.getFightState() != FightState.POST_SCHEM_SETUP)
+                fightTeam.setSchematic(s);
             p.closeInventory();
         });
         inv.setCallback(-999, (ClickType click) -> p.closeInventory());