https://clickhouse-test-reports.s3.yandex.net/19475/02d28c1f9b9558ca5af267167a542819b9e1d061/fuzzer_debug/report.html#fail1
{
    Block block = materializeBlock(src_block);
    JoinCommon::removeLowCardinalityInplace(block, table_join->keyNamesRight());
    return block;
}
bool MergeJoin::addJoinedBlock(const Block & src_block, bool)
{
    Block block = modifyRightBlock(src_block);
    sortBlock(block, right_sort_description);
    return saveRightBlock(std::move(block));
}
void MergeJoin::joinBlock(Block & block, ExtraBlockPtr & not_processed)