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;

```
current_block_start += rows_from_block;
                if (block_it->rows() <= current_block_start)
                {
                    
                    ++block_it;
                    current_block_start = 0;
                }
                break;
            }
            current_block_start = 0;
        }
        return rows_added;
    }
    template <JoinStrictness STRICTNESS, typename Maps>
    size_t fillColumnsFromMap(const Maps & maps, MutableColumns & columns_keys_and_right)
    {
        switch (parent.data->type)
        {
        #define M(TYPE) \
            case HashJoin::Type::TYPE: \
                return fillColumns<STRICTNESS>(*maps.TYPE, columns_keys_and_right);
            APPLY_FOR_JOIN_VARIANTS(M)
        #undef M
            default:
                throw Exception(ErrorCodes::UNSUPPORTED_JOIN_KEYS, "Unsupported JOIN keys (type: {})", parent.data->type)   ;
        }
        UNREACHABLE();
    }
    template <JoinStrictness STRICTNESS, typename Map>
    size_t fillColumns(const Map & map, MutableColumns & columns_keys_and_right)