https://clickhouse-test-reports.s3.yandex.net/20492/c5b96a522e29b38eae3f6c2d945540dd234e3c34/fuzzer_msan/server.log

```
for i in {1..100}; do clickhouse-client --query "SELECT toUInt8(assumeNotNull(cast(cast(NULL, 'Nullable(String)'), 'Nullable(Enum8(\'Hello\' = 1))')))"; done

160
224
128
192
64
64
32
160
128
192
128
224
128
160
0
96
64
32
192
224
64
96
224
96
128
192
192
128
...
```
result_column = ConvertImpl<LeftDataType, RightDataType, NameCast>::execute(
                            arguments, result_type, input_rows_count, AccurateConvertStrategyAdditions());
                    }
                    else
                    {
                        result_column = ConvertImpl<LeftDataType, RightDataType, NameCast>::execute(
                            arguments, result_type, input_rows_count, AccurateOrNullConvertStrategyAdditions());
                    }
                    return true;
                }
                return false;
            });
            
            if (!res)
            {
                if (wrapper_cast_type == CastType::accurateOrNull)
                {
                    auto nullable_column_wrapper = FunctionCast::createToNullableColumnWrapper();
                    return nullable_column_wrapper(arguments, result_type, column_nullable, input_rows_count);
                }
                else
                {
                    throw Exception{"Conversion from " + std::string(getTypeName(from_type_index)) + " to " + to_type->getName() + " is not supported",
                        ErrorCodes::CANNOT_CONVERT_TYPE};
                }
            }
            return result_column;
        };
    }
    WrapperType createStringWrapper(const DataTypePtr & from_type) const