Preload nullable foreign key isnt working when null

[q8tywolf]

Package version

20.6.0

Describe the bug

I have a user model in adonis and Job model

In the job model I have the following

Migration
note this foreign key is nullable
... table.integer('handled_by').nullable().unsigned() .references('id').inTable('users') ...

Model
...
@belongsTo(() => User, { localKey: 'handledBy', foreignKey: 'id' })
declare handlingBy: BelongsTo<typeof User>

@column({ columnName: "handled_by" })
declare handledBy: number;
...
Query

await Job.query().where('listedBy', user.id).preload('listingBy').preload('handlingBy')

Error
When the handledBy is null, I get the error
"status_message": "\"Job.handlingBy\" expects \"handledBy\" to exist on \"User\" model, but is missing",

Reproduction repo

No response

[q8tywolf]

Fixed I had to make the localKey this key in User with BelongsTo