message: Group position values more logically
  The origin was a copy of position.xy, with no change to xy. Here it
  makes more sense to pair the original xy with the original z.
diff: @@ -214,7 +214,7 @@ void MapViewState::onDiggerTaskComplete(Robot* robot)
  as2->ug();
  NAS2D::Utility<StructureManager>::get().addStructure(as2, &mTileMap->getTile({origin, newDepth}));
  - mTileMap->getTile({origin, position.z}).index(TerrainType::Dozed);
  + mTileMap->getTile({position.xy, position.z}).index(TerrainType::Dozed);
  mTileMap->getTile({origin, newDepth}).index(TerrainType::Dozed);
  /// \fixme Naive approach; will be slow with large colonies.
  