Merge pull request 'Fix NoClip' (#491) from Hut512/SteamWar:fix/swplayer-invalid-reference into main

Reviewed-on: SteamWar/SteamWar#491
Reviewed-by: YoyoNow <4+yoyonow@noreply.localhost>

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/util/NoClipCommand.java

@@ -115,6 +115,7 @@ public class NoClipCommand extends SWCommand implements Listener {
             Abilities abilities = (((CraftPlayer) player).getHandle()).getAbilities();
             abilities.mayBuild = true;
             abilities.mayfly = true;
+            abilities.instabuild = true;
 
             swPlayer.setComponent(new NoClipData());
             BauSystem.MESSAGE.send("OTHER_NOCLIP_SLOT_INFO", player);

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/features/world/BauScoreboard.java

@@ -131,6 +131,7 @@ public class BauScoreboard implements Listener {
 
     @EventHandler
     public void onPlayerQuit(PlayerQuitEvent event) {
+        SWScoreboard.impl.removeScoreboard(event.getPlayer());
         ADDITIONAL_SCOREBOARD_LINES.remove(event.getPlayer());
     }
 }

SpigotCore/SpigotCore_Main/src/de/steamwar/scoreboard/SWScoreboard.java

@@ -67,7 +67,9 @@ public class SWScoreboard {
     }
 
     public void removeScoreboard(Player player) {
+        if (player.getScoreboard().getObjective(SIDEBAR) != null) {
             player.getScoreboard().getObjective(SIDEBAR).unregister();
+        }
         playerBoards.remove(player);
     }
 }