message: Use reference syntax for Tile reference
diff: @@ -519,10 +519,10 @@ void checkRobotDeployment(XmlElement* _ti, RobotTileTable& _rm, Robot* _r, Robot
  const auto it = _rm.find(_r);
  if (it->first == _r)
  {
  - const auto tile = it->second;
  - _ti->attribute("x", tile->x());
  - _ti->attribute("y", tile->y());
  - _ti->attribute("depth", tile->depth());
  + const auto& tile = *it->second;
  + _ti->attribute("x", tile.x());
  + _ti->attribute("y", tile.y());
  + _ti->attribute("depth", tile.depth());
  }
  }
  