Auto load child records on opening a form

[bromoapp]

Hi, I have this class:

class ProjectTrackList(ModelSQL, ModelView):
    'Project Track List'
    __name__ = 'afx.project.tracklist'
    
    list_name = fields.Char('List Name', required=True, readonly=True)
    duration = fields.Selection('_get_durations', 'Duration', sort=False)
    resource_name = fields.Selection('_get_resource_names', 'Resource Name')
    client_name = fields.Selection('_get_client_names', 'Client Name')
    team = fields.Selection('_get_teams', 'Team', sort=False)
    proj_name = fields.Selection('_get_proj_names', 'Project Name', sort=False)
    proj_status = fields.Selection([], 'Project Status', sort=False)
    completion = fields.Selection([], 'Completion', sort=False)
    start_date = fields.Date('Start Date')
    end_date = fields.Date('End Date')
    pic = fields.Selection('_get_resource_names', 'PIC')
    duration = fields.Selection([], 'Duration', sort=False)

    projects = fields.One2Many('afx.project.tracklist.record', 'tracklist', 'Projects')

    # ----------- UTIL METHODS --------------
    @classmethod
    def __setup__(cls):
        cls.duration.selection = cls._get_durations()
        cls.completion.selection = cls._get_completions()
        cls.proj_status.selection = cls._get_proj_statuses()
        return super().__setup__()
    
    @classmethod
    def default_list_name(cls):
        pool = Pool()
        ProjectTrackList = pool.get('afx.project.tracklist')
        tracklist = ProjectTrackList.search([('id', '=', '1')])
        if tracklist:
            return tracklist[0].list_name
        return None

    @classmethod
    def default_projects(cls):
        pool = Pool()
        ProjectTrackListRecord = pool.get('afx.project.tracklist.record')
        records = ProjectTrackListRecord.search([('tracklist', '=', '1')])
        if records:
            logger.info('>>'*30)
            logger.info(f"{records}")
            logger.info('>>'*30)
            return records
        return None

And I open the form of this class directly from Nav-bar link, as below

From the screenshot and also the console (not attached here), you can see that the projects field (One2Many to afx_project_tracklist_record) did loaded using default_projects method.
But why the records not appears in the table below the form? and only the rows?

It is supposed to be like below:

Only after I clicked save button, the table populated.

Regards
Bromo

[udono]

@bromoapp

@classmethod
    def default_projects(cls):
        pool = Pool()
        ProjectTrackListRecord = pool.get('afx.project.tracklist.record')
        records = ProjectTrackListRecord.search([('tracklist', '=', '1')])
        if records:
            logger.info('>>'*30)
            logger.info(f"{records}")
            logger.info('>>'*30)
            return records
        return None

Does it work when you return the ids only?

@classmethod
    def default_projects(cls):
        pool = Pool()
        ProjectTrackListRecord = pool.get('afx.project.tracklist.record')
        records = ProjectTrackListRecord.search([('tracklist', '=', '1')])
        if records:
            return [r.id for r in records]
        return None

[bromoapp]

@udono

return [r.id for r in records]

Amazing @udono thanks a lot