and here

AI/Nullkiller/Pathfinding/AINodeStorage.cpp

@@ -88,11 +88,11 @@ void AINodeStorage::initialize(const PathfinderOptions & options, const CGameSta
 			{
 				for(pos.y = 0; pos.y < sizes.y; ++pos.y)
 				{
-					const TerrainTile* tile = &gs->map->getTile(pos);
-					if (!tile->terType->isPassable())
+					const TerrainTile & tile = gs->map->getTile(pos);
+					if (!tile.terType->isPassable())
 						continue;
 
-					if (tile->terType->isWater())
+					if (tile.terType->isWater())
 					{
 						resetTile(pos, ELayer::SAIL, PathfinderUtil::evaluateAccessibility<ELayer::SAIL>(pos, tile, fow, player, gs));
 						if (useFlying)