SQLAlchemy related attributes not filtered

#!/usr/bin/env python

from sqlalchemy import (
    Boolean, Column,
    ForeignKey, Integer,
    String, create_engine,
)
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import backref, joinedload, relationship, sessionmaker

engine = create_engine('sqlite:///:memory:', echo=True)
Base = declarative_base()
Session = sessionmaker(bind=engine)


class Company(Base):
    __tablename__ = 'companies'

    id = Column(Integer, primary_key=True)
    name = Column(String)


class User(Base):
    __tablename__ = 'users'

    id = Column(Integer, primary_key=True)
    name = Column(String)
    company_id = Column(Integer, ForeignKey(Company.id))
    is_active = Column(Boolean)

    company = relationship('Company', backref=backref('users', cascade='all'))


if __name__ == '__main__':
    Base.metadata.create_all(engine)
    session = Session()

    acme = Company(name='ACME')
    bob = User(name='Bob', is_active=True, company=acme)
    alice = User(name='Alice', is_active=False, company=acme)

    session.add(bob)
    session.add(alice)
    session.flush()
    session.expire_all()

    company_with_active: Company = (
        session.query(Company)
            .join(User)
            .options(joinedload(Company.users))
            .filter(
                Company.name == 'ACME',
                User.is_active.is_(True),
            )
            .one()
    )

    print('\n'*3)
    print('Company with active users:')
    print('\n'*3)
    print(company_with_active.name)
    for user in company_with_active.users:
        user: User
        print(user.name)