https://s3.amazonaws.com/clickhouse-test-reports/42778/66c179217cdfdee1ba0d4b4b577b1a62655caed0/fuzzer_astfuzzermsan//report.html

Minimal example
```sql
#!/usr/bin/clickhouse-client --queries-file

DROP TABLE IF EXISTS tab1;
DROP TABLE IF EXISTS tab2;

SET allow_suspicious_low_cardinality_types = 1;

create table tab1 (a1 Int32, b1 Int32) engine = MergeTree order by a1;
create table tab2 (a2 LowCardinality(Int32), b2 Int32) engine = MergeTree order by a2;

insert into tab1 values (1, 2);
insert into tab2 values (1, 2);

SET join_use_nulls = 1;

SELECT 1 FROM tab1 FULL OUTER JOIN tab2 ON b1 - 2 = a2 OR a1 = b2;

```
++rows_added;
                    }
                }
            }
        }
        else
        {
            using Mapped = typename Map::mapped_type;
            using Iterator = typename Map::const_iterator;
            if (!position.has_value())
                position = std::make_any<Iterator>(map.begin());
            Iterator & it = std::any_cast<Iterator &>(position);
            auto end = map.end();
            for (; it != end; ++it)
            {
                const Mapped & mapped = it->getMapped();
                size_t off = map.offsetInternal(it.getPtr());
                if (parent.isUsed(off))
                    continue;
                AdderNonJoined<Mapped>::add(mapped, rows_added, columns_keys_and_right);
                if (rows_added >= max_block_size)
                {
                    ++it;
                    break;
                }
            }
        }
        return rows_added;
    }
    void fillNullsFromBlocks(MutableColumns & columns_keys_and_right, size_t & rows_added)