https://clickhouse-test-reports.s3.yandex.net/15348/34addcf61f653e50e493ff8d94fab015db91fa59/fuzzer/report.html#fail1
const Columns & key_columns, const DataTypes & key_types,
    StringRefs & refs, ArenaWithFreeLists & arena, std::vector<bool> & found,
    std::vector<size_t> & default_ids,
    std::chrono::system_clock::time_point now) const
{
    auto set_value = [&](const size_t index, ReadBuffer & buf)
    {
        keys_pool.ignoreKey(buf);
        Metadata metadata;
        readBinary(metadata.data, buf);
        if (metadata.expiresAt() > now)
        {
            if (metadata.isDefault())
                default_ids.push_back(index);
            else
            {
                ignoreFromBufferToAttributeIndex(attribute_index, buf);
                size_t size = 0;
                readVarUInt(size, buf);
                char * string_ptr = arena.alloc(size);
                memcpy(string_ptr, buf.position(), size);
                refs[index].data = string_ptr;
                refs[index].size = size;
            }
            found[index] = true;
        }
    };
    getImpl(key_columns, key_types, set_value, found);
}
void SSDComplexKeyCachePartition::has(