Dotnet 5.0 referencing child entity without include

I'm on a dotnet project using dotnet 5. This project are not code first, I'm creating the entity relationship with "dotnet ef dbcontext scaffold" and I'm having this issue:

I have an entity that points to itself: LegalPerson -> LegalPersonParent

    public partial class LegalPerson
    {
        [Key]
        [Column("id")]
        public long Id { get; set; }

        [Column("idPessoa")]
        public long PersonId { get; set; }

        [Column("idPessoaJuridicaPai")]
        public long? LegalPersonParentId { get; set; }

        [Column("idRamoDeAtividade")]
        public long? ActivityBranchId { get; set; }

        [ForeignKey(nameof(LegalPersonParentId))]
        public virtual LegalPerson LegalPersonParent { get; set; }

        [ForeignKey(nameof(PersonId))]
        public virtual Person Person { get; set; }

        [ForeignKey(nameof(ActivityBranchId))]
        public virtual ActivityBranch ActivityBranch { get; set; }

    }

But when I get all LegalPersons, I'm getting LegalPersonParent too.

context.LegalPersons.ToList();

returns:

[
    {
        "id": 1365,
        "personId": 1,
        "legalPersonParentId": 1367,
        "activityBranchId": 1,
        "legalPersonParent": {
            "id": 1367,
            "personId": 6,
            "legalPersonParentId": null,
            "activityBranchId": null,
            "legalPersonParent": null,
            "person": null,
            "activityBranch": null
        },
        "person": null,
        "activityBranch": null
    },
    ... more data
]

What I want is to only add LegalPersonParent when I add Include method like:

context.LegalPersons.Include(legalPerson => legalPerson.LegalPersonParent).ToList();

There are more interesting things happening. On the return of context.LegalPersons.ToList(); previously shon, the ActivityBranch and Person are working correctly not getting the entity, only the reference id -> activityBranchId and personId

The other interesting thing happening is when i search for a single LegalPerson, it's not getting the LegalPersonParent:

_context.LegalPersons.FirstOrDefault(legalPerson => legalPerson.Id == id);

returns:

{
    "id": 1365,
    "personId": 1,
    "legalPersonParentId": 1367,
    "activityBranchId": 1,
    "legalPersonParent": null,
    "person": null,
    "activityBranch": null
}

The DbContext:

modelBuilder.Entity<LegalPerson>(entity =>
{
     entity.HasIndex(e => e.PersonId, "IDX_PessoaJuridica_idPessoa")
         .HasFillFactor((byte)70);
});