No SRS after Reader::prepare

no-srs.cpp

#include <pdal/PointTable.hpp>
#include <pdal/Reader.hpp>
#include <pdal/StageFactory.hpp>

namespace
{
    const std::string path("autzen.las");
}

std::unique_ptr<pdal::Reader> makeReader(const std::string f)
{
    pdal::StageFactory factory;
    const std::string driver(factory.inferReaderDriver(f));

    if (driver.empty()) throw std::runtime_error("No driver - " + f);

    std::unique_ptr<pdal::Reader> reader(
            static_cast<pdal::Reader*>(factory.createStage(driver)));

    if (!reader) throw std::runtime_error("No reader - " + f);

    pdal::Options options;
    options.add(pdal::Option("filename", f));
    reader->setOptions(options);

    return reader;
}

int main()
{
    {
        auto reader(makeReader(path));
        auto preview(reader->preview());

        std::cout << "\nPreview: " << preview.m_srs.getWKT() << std::endl;
    }

    {
        auto reader(makeReader(path));
        pdal::PointTable table;
        reader->prepare(table);

        std::cout << "\nPrepared: " <<
            reader->getSpatialReference().getWKT() << std::endl;
    }

    return 0;
}

output.txt

~/code/test/pdal $ g++ -std=c++11 no-srs.cpp -lpdalcpp && ./a.out

Preview: PROJCS["NAD_1983_HARN_Lambert_Conformal_Conic",GEOGCS["GCS_North_American_1983_HARN",DATUM["NAD83_High_Accuracy_Regional_Network",SPHEROID["GRS_1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6152"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["standard_parallel_1",43],PARAMETER["standard_parallel_2",45.5],PARAMETER["latitude_of_origin",41.75],PARAMETER["central_meridian",-120.5],PARAMETER["false_easting",1312335.958005249],PARAMETER["false_northing",0],UNIT["foot",0.3048,AUTHORITY["EPSG","9002"]]]

Prepared:
~/code/test/pdal $