Fix NoCom detection (dropping blocks)

SpigotCore_Main/src/de/steamwar/core/events/AntiNocom.java

@@ -40,7 +40,7 @@ public class AntiNocom {
         Object pos = digPosition.get(packet);
         int x = TechHider.blockPositionX.get(pos);
         int z = TechHider.blockPositionZ.get(pos);
-        if(!player.getWorld().isChunkLoaded(ProtocolUtils.posToChunk(x), ProtocolUtils.posToChunk(z))) {
+        if((x != 0 || z != 0) && !player.getWorld().isChunkLoaded(ProtocolUtils.posToChunk(x), ProtocolUtils.posToChunk(z))) {
             Bukkit.getScheduler().runTask(Core.getInstance(), () -> player.kickPlayer(null));
             SWException.log(player.getName() + " kicked for digging an unloaded block (potential NoCom-DOS attack)", x + " " + z);
             return null;