```
SELECT
    CAST(([2, 1, 1023], ['', '']), 'Map(UInt8, String)') AS map,
    map[10]
```

Triggers `Assertion 'n < size()' failed` in `DB::ColumnString::operator[](unsigned long)`
https://clickhouse-test-reports.s3.yandex.net/18481/64c4ade5b0e0c9a13d6c2475431daf431fc97554/fuzzer/fuzzer.log

Introduced here: #17829
First found here: #18481
bool isDeterministic() const override { return true; }
    bool isDeterministicInScopeOfQuery() const override { return true; }
    bool hasInformationAboutMonotonicity() const override
    {
        return static_cast<bool>(monotonicity_for_range);
    }
    Monotonicity getMonotonicityForRange(const IDataType & type, const Field & left, const Field & right) const override
    {
        return monotonicity_for_range(type, left, right);
    }
private:
    const char * name;
    MonotonicityForRange monotonicity_for_range;
    DataTypes argument_types;
    DataTypePtr return_type;
    std::optional<Diagnostic> diagnostic;
    CastType cast_type;
    WrapperType createFunctionAdaptor(FunctionPtr function, const DataTypePtr & from_type) const