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;

```
if (save_nullmap && (*null_map)[i])
                        continue;
                    not_joined_map->getData()[i] = 1;
                }
            }
            if (kind != JoinKind::Cross)
            {
                joinDispatch(kind, strictness, data->maps[onexpr_idx], [&](auto kind_, auto strictness_, auto & map)
                {
                    size_t size = insertFromBlockImpl<strictness_>(
                        *this, data->type, map, rows, key_columns, key_sizes[onexpr_idx], stored_block, null_map,
                        
                        join_mask_col.getData(),
                        data->pool);
                    if (multiple_disjuncts)
                        used_flags.reinit<kind_, strictness_>(stored_block);
                    else
                        
                        used_flags.reinit<kind_, strictness_>(size + 1);
                });
            }
            if (!multiple_disjuncts && save_nullmap)
                data->blocks_nullmaps.emplace_back(stored_block, null_map_holder);
            if (!multiple_disjuncts && not_joined_map)
                data->blocks_nullmaps.emplace_back(stored_block, std::move(not_joined_map));
            if (!check_limits)
                return true;
            
            total_rows = getTotalRowCount();