(you don't have to strictly follow this form)

**Describe the bug**
A link to the report: https://s3.amazonaws.com/clickhouse-test-reports/35466/d81c58b5d9be45ac69c3859b5cbe97080711f6d9/fuzzer_astfuzzerubsan,actions//report.html
The commit: https://github.com/ClickHouse/ClickHouse/commit/d81c58b5d9be45ac69c3859b5cbe97080711f6d9
{
    auto expression_before_aggregation = std::make_unique<ExpressionStep>(query_plan.getCurrentDataStream(), expression);
    expression_before_aggregation->setStepDescription("Before GROUP BY");
    query_plan.addStep(std::move(expression_before_aggregation));
    if (options.is_projection_query)
        return;
    const auto & header_before_aggregation = query_plan.getCurrentDataStream().header;
    ColumnNumbers keys;
    for (const auto & key : query_analyzer->aggregationKeys())
        keys.push_back(header_before_aggregation.getPositionByName(key.name));
    AggregateDescriptions aggregates = query_analyzer->aggregates();
    for (auto & descr : aggregates)
        if (descr.arguments.empty())
            for (const auto & name : descr.argument_names)
                descr.arguments.push_back(header_before_aggregation.getPositionByName(name));
    const Settings & settings = context->getSettingsRef();
    Aggregator::Params params(
        header_before_aggregation,
        keys,
        aggregates,
        overflow_row,
        settings.max_rows_to_group_by,
        settings.group_by_overflow_mode,
        settings.group_by_two_level_threshold,
        settings.group_by_two_level_threshold_bytes,
        settings.max_bytes_before_external_group_by,
        settings.empty_result_for_aggregation_by_empty_set
            || (settings.empty_result_for_aggregation_by_constant_keys_on_empty_set && keys.empty()