feat: force synchronization of expense deductions before posting account payments

models/account_payment.py

@@ -6,6 +6,17 @@ class AccountPayment(models.Model):
 
     realization_id = fields.Many2one('hr.expense.realization', string='Originating Realization', readonly=True)
 
+    def action_post(self):
+        """
+        Force synchronization before posting to ensure deductions are included,
+        even if the payment was previously 'Reset to Draft' without edits.
+        """
+        for payment in self:
+            if payment.state == 'draft' and payment.expense_sheet_id:
+                # Force sync by pretending amount changed to refresh the lines
+                payment._synchronize_to_moves({'amount', 'deduction_line_ids', 'amount_substract'})
+        return super().action_post()
+
     def _synchronize_to_moves(self, changed_fields):
         """
         Bypass standard Odoo restriction for payments linked to expense reports