fixed server world upload

src/client/game/WorldClient.cpp

@@ -26,6 +26,10 @@ WorldClient::WorldClient(ClientGame* game) : game::World(game), protocol::Packet
 	GetDispatcher()->RegisterHandler(protocol::PacketType::UpdateMobStates, this);
 }
 
+WorldClient::~WorldClient() {
+	GetDispatcher()->UnregisterHandler(this);
+}
+
 void WorldClient::HandlePacket(const protocol::WorldBeginDataPacket* packet) {
 	LoadMap(packet);
 	if (m_Game->GetGameState() == game::GameState::Game) {