I have an 'election' model with 3 different one2many fields to other relatet model 'member'. The difference between those One2Many fields is that  each of them has a different domain. The problem is that, when I tried to delete one member from one of the one2many fields using the election form (using the tree list) the aparently deleted record shows again when I click the 'save' button from the election form. Perhaps it has something to do with the fact that there are 2 different one2many relations and when you delete an element  (member) from one, The reference is intact in the other One2many fields. I am working with Odoo 17

member_ids = fields.One2many('elections.member', 'election_id', string='Members',                                 domain=[('is_observer','=', False )])        

observer_ids = fields.One2many('elections.member', 'election_id', string='Observers',                              domain=[('is_observer','=', True ), ('is_candidate','=', False )])  

all_member_ids = fields.One2many('elections.member', 'election_id', string='All members (including observers and candidates)')

 <notebook>
            <page name="members" string="Members">
                <field name="member_ids" readonly='state != "draft"'  domain="[('is_observer','=', False ), ('is_candidate','=', False )]" context="{'default_is_observer': 0, 'default_is_candidate': 0, 'from_o2m': 1}">
                  <tree>
                    <field name="name" />
                    <field name="specialty_certificate" />
                    <field name="membership_status" />
                    <field name="is_candidate" />
                    <button name="action_send_email_with_qr_code" type="object" string="Email with QR"
                            invisible="membership_status!='college'"
                            icon="fa-envelope"/>
                    <button name="viixoo_cmim_elections.small_qr_report" type="action" string="Print QR" 
                            invisible="membership_status != 'college'"
                            icon="fa-print"/>
                  </tree>
                </field>
            </page>
            <page name="observers" string="Observers">
                <field name="observer_ids" readonly='state != "draft"'  string="Observer" domain="[('is_observer','=', True ), ('is_candidate','=', False )]" context="{'default_is_observer': 1, 'default_is_candidate': 0, 'from_o2m': 1}">
                <tree>
                    <field name="name" />
                    <field name="specialty_certificate" />
                    <field name="membership_status" />
                    <field name="is_president" />
                    <button name="action_send_email_with_qr_code" type="object" string="Email with QR"
                            invisible="membership_status!='college'"
                            icon="fa-envelope"/>
                    <button name="viixoo_cmim_elections.small_qr_report" type="action" string="Print QR" 
                            invisible="membership_status!='college'"
                            icon="fa-print"/>
                  </tree>
                </field>
            </page>
 </notebook>