**Describe the bug**
https://s3.amazonaws.com/clickhouse-test-reports/42463/4645d465b12013d99d88956020034cbfa47d9455/fuzzer_astfuzzerubsan//server.log

**How to reproduce**
```
CREATE TABLE test_wide_nested (`id` Int, `info.id` Array(Int), `info.name` Array(String), `info.age` Array(Int)) ENGINE = MergeTree ORDER BY tuple() SETTINGS min_bytes_for_wide_part = 0

INSERT INTO test_wide_nested SELECT number, [number, number + 1], ['aa', 'bb'], [number, number * 2] FROM numbers(5)

ALTER TABLE test_wide_nested UPDATE `info.id` = [100, 200, 300], `info.age` = [10, 20, 30], `info.name` = ['a', 'b', 'c'] WHERE arrayJoin([100, -2147483647, NULL]) = id
```

(note: it is not instantly reproducible, needs more investigation)
const String & column_name,
    const NamesAndTypesList & all_columns,
    const std::unordered_map<String, ASTPtr> & column_to_update_expression)
{
    std::vector<ASTPtr> res;
    auto source_name = Nested::splitName(column_name).first;
    
    for (const auto & column : all_columns)
    {
        auto split = Nested::splitName(column.name);
        if (isArray(column.type) && split.first == source_name && !split.second.empty())
        {
            auto it = column_to_update_expression.find(column.name);
            if (it == column_to_update_expression.end())
                return {};
            res.push_back(it->second);
        }
    }
    return res;
}
ASTPtr MutationsInterpreter::prepare(bool dry_run)