[FIX] account: Allow copying reco model lines

When duplicating the reco model, we want to counterpart entry lines to be copied as well.

closes odoo/odoo#122360

X-original-commit: c5d5f4db
Signed-off-by: William André (wan) <wan@odoo.com>

addons/account/models/account_reconcile_model.py

@@ -345,7 +345,7 @@ class AccountReconcileModel(models.Model):
     match_partner_category_ids = fields.Many2many('res.partner.category', string='Matching categories',
         help='The reconciliation model will only be applied to the selected customer/vendor categories.')
 
-    line_ids = fields.One2many('account.reconcile.model.line', 'model_id')
+    line_ids = fields.One2many('account.reconcile.model.line', 'model_id', copy=True)
     partner_mapping_line_ids = fields.One2many(string="Partner Mapping Lines",
                                                comodel_name='account.reconcile.model.partner.mapping',
                                                inverse_name='model_id',