Debug build:
```
CREATE TABLE table_float__fuzz_44 (`f` Decimal(18, 3), `u` Int8) ENGINE = MergeTree ORDER BY (f, u);
INSERT INTO table_float VALUES (1.2, 1) (1.3, 2) (1.4, 3) (1.5, 4);
SELECT count() FROM table_float__fuzz_44 WHERE (toUInt64(f) = 1) AND (f >= 1.3) AND (f <= 1.4) AND (u > 0) GROUP BY (toUInt64(f) = 1) AND (f >= 1.3) AND (f <= 100.0001) AND (u > 0);
```

https://s3.amazonaws.com/clickhouse-test-reports/44812/ea04181d11827fd552a86ca4d9c07e1d531e6ca3/fuzzer_astfuzzerdebug/report.html
{
        ColumnUInt8::MutablePtr null_map = copyNullMap(arguments[0].column);
        const auto & nested =  columnGetNested(arguments[0]);
        if (const ColumnFixedString * col_from = checkAndGetColumn<ColumnFixedString>(nested.column.get()))
        {
            auto col_to = ColumnString::create();
            const ColumnFixedString::Chars & data_from = col_from->getChars();
            ColumnString::Chars & data_to = col_to->getChars();
            ColumnString::Offsets & offsets_to = col_to->getOffsets();
            size_t size = col_from->size();
            size_t n = col_from->getN();
            data_to.resize(size * (n + 1)); 
            offsets_to.resize(size);
            size_t offset_from = 0;
            size_t offset_to = 0;
            for (size_t i = 0; i < size; ++i)
            {
                if (!null_map || !null_map->getData()[i])
                {
                    size_t bytes_to_copy = n;
                    while (bytes_to_copy > 0 && data_from[offset_from + bytes_to_copy - 1] == 0)
                        --bytes_to_copy;
                    memcpy(&data_to[offset_to], &data_from[offset_from], bytes_to_copy);
                    offset_to += bytes_to_copy;
                }
                data_to[offset_to] = 0;