[FIX] Not use _origin in _compute_selected_debt

account_payment_pro/models/account_payment.py

@@ -96,7 +96,8 @@ class AccountPayment(models.Model):
         help='This lines are the ones the user has selected to be paid.',
         copy=False,
         readonly=False,
-        check_company=True
+        check_company=True,
+        precompute=True,
     )
     matched_move_line_ids = fields.Many2many(
         'account.move.line',
@@ -403,7 +404,8 @@ def _compute_payment_difference(self):
     def _compute_selected_debt(self):
         for rec in self:
             # factor = 1
-            rec.selected_debt = sum(rec.to_pay_move_line_ids._origin.mapped('amount_residual')) * (-1.0 if rec.partner_type == 'supplier' else 1.0)
+            # rec.selected_debt = sum(rec.to_pay_move_line_ids._origin.mapped('amount_residual')) * (-1.0 if rec.partner_type == 'supplier' else 1.0)
+            rec.selected_debt = sum(rec.to_pay_move_line_ids.mapped('amount_residual')) * (-1.0 if rec.partner_type == 'supplier' else 1.0)
             # TODO error en la creacion de un payment desde el menu?
             # if rec.payment_type == 'outbound' and rec.partner_type == 'customer' or \
             #         rec.payment_type == 'inbound' and rec.partner_type == 'supplier':
@@ -425,7 +427,7 @@ def _inverse_to_pay_amount(self):
     def _compute_to_pay_move_lines(self):
         # TODO deberiamos ver que se recomputen solo si la deuda que esta seleccionada NO es de este
         # partner, compania o partner_type
-        # # if payment group is being created from a payment we dont want to compute to_pay_move_lines
+        # # if payment group is being   created from a payment we dont want to compute to_pay_move_lines
         # if self._context.get('created_automatically'):
         #     return
         for rec in self: