Lucid nullable HasOne relationship Database

[muniter]

When declaring a model property as:

Person extends BaseModel {
...
@hasOne(() => Address)
address: HasOne<typeof Address> | null
...
}

Type inference breaks in:

Person.query().preload('address')

With error Argument of type 'address' is not assignable to parameter of type 'undefined'. If I remove the null from the type definition of the property the preloading works correctly.

I believe this functionality is allowed as discribed in this PR: adonisjs/lucid#944

Anyone knows what's happening?