Force transport passengers grid loading if player is present on map t…

…raversal

src/game/Entities/Transports.cpp

@@ -281,6 +281,7 @@ void Transport::TeleportTransport(uint32 newMapid, float x, float y, float z, fl
     Relocate(x, y, z);
 
     bool mapChange = GetMapId() != newMapid;
+    bool playerPassenger = false;
 
     auto& passengers = GetPassengers();
     for (m_passengerTeleportIterator = passengers.begin(); m_passengerTeleportIterator != passengers.end();)
@@ -316,6 +317,7 @@ void Transport::TeleportTransport(uint32 newMapid, float x, float y, float z, fl
                 if (player->IsDead() && !player->HasFlag(PLAYER_FLAGS, PLAYER_FLAGS_GHOST))
                     player->ResurrectPlayer(1.0);
                 player->TeleportTo(newMapid, pos.x, pos.y, pos.z, pos.o, TELE_TO_NOT_LEAVE_TRANSPORT, nullptr, this);
+                playerPassenger = true;
                 break;
             }
             case TYPEID_GAMEOBJECT:
@@ -343,12 +345,14 @@ void Transport::TeleportTransport(uint32 newMapid, float x, float y, float z, fl
         ResetMap();
 
         Map* newMap = sMapMgr.CreateMap(newMapid, this);
-        newMap->GetMessager().AddMessage([transport = this](Map* map)
+        newMap->GetMessager().AddMessage([transport = this, playerPassenger](Map* map)
         {
             transport->SetMap(map);
             transport->Object::AddToWorld();
             map->AddTransport(transport);
             transport->AddModelToMap();
+            if (playerPassenger)
+                map->ForceLoadGrid(transport->GetPositionX(), transport->GetPositionY());
             transport->SpawnPassengers();
             transport->UpdateForMap(map, true);
         });