**Describe the bug**
https://clickhouse-test-reports.s3.yandex.net/19758/b9b573976e465670990c041ec303b59df1ee3919/fuzzer_asan/server.log

}
                }
                auto emplace_result = method.emplaceKey(indices, j, pool);
                auto idx = emplace_result.getMapped() + 1;
                emplace_result.setMapped(idx);
                res_values[j] = idx;
            }
            prev_off = off;
        }
    }
    else
    {
        
        for (size_t off : offsets)
        {
            indices.clear();
            UInt32 rank = 0;
            [[maybe_unused]] UInt32 null_index = 0;
            for (size_t j = prev_off; j < off; ++j)
            {
                if constexpr (has_null_map)
                {
                    if ((*null_map)[j])
                    {
                        if (!null_index)
                            null_index = ++rank;
                        res_values[j] = null_index;
                        continue;
                    }
                }