Dumping union with list raises RecursionError

[mrmerkone]

from typing import Optional, List
from dataclasses import dataclass

import ctor


@dataclass
class Foo:
    foo: str


@dataclass
class Bar:
    bar: str


@dataclass
class ListsAggregate:
    first: Optional[List[Foo]] = None
    second: Optional[List[Bar]] = None


list_aggregate = ListsAggregate(
    first=[Foo("value")],
    second=[Bar("value")]
)

ctor.dump(list_aggregate)

raises RecursionError: maximum recursion depth exceeded while calling a Python object