Changeset Field Rules
['|',('company_id','=',False),('company_id', 'in', company_ids)]
Record Changeset
['|',('company_id','=',False),('company_id', 'in', company_ids)]
Restrict changeset change access for users
[('create_uid', '=', user.id)]
Allow changeset change access for changeset users
[('rule_id.validator_group_ids', 'in', user.groups_id.ids)]