[FIX] point_of_sale: Payment term 30% Now, Balance 60 Days not supported in POS

Steps to reproduce the bug:

- Let's consider a customer C with default sale payment term 30% Now, Balance 60 Days
- Go to the POS and open a session
- Select a product and set C as customer
- Click on Payment and select Cash and check Invoice

Bug:

A traceback was raised because several account move lines are created.

opw:3009062

closes odoo/odoo#103589

X-original-commit: 15f586b3dec5c951b10a7eea5aca219ad466da9b
Signed-off-by: Masereel Pierre <pim@odoo.com>

addons/point_of_sale/models/pos_order.py

@@ -848,12 +848,11 @@ class PosOrder(models.Model):
     def _apply_invoice_payments(self):
         receivable_account = self.env["res.partner"]._find_accounting_partner(self.partner_id).with_company(self.company_id).property_account_receivable_id
         payment_moves = self.payment_ids.sudo().with_company(self.company_id)._create_payment_moves()
-        invoice_receivable = self.account_move.line_ids.filtered(lambda line: line.account_id == receivable_account)
-        # Reconcile the invoice to the created payment moves.
-        # But not when the invoice's total amount is zero because it's already reconciled.
-        if not invoice_receivable.reconciled and receivable_account.reconcile:
-            payment_receivables = payment_moves.mapped('line_ids').filtered(lambda line: line.account_id == receivable_account and line.partner_id)
-            (invoice_receivable | payment_receivables).sudo().with_company(self.company_id).reconcile()
+        if receivable_account.reconcile:
+            invoice_receivables = self.account_move.line_ids.filtered(lambda line: line.account_id == receivable_account and not line.reconciled)
+            if invoice_receivables:
+                payment_receivables = payment_moves.mapped('line_ids').filtered(lambda line: line.account_id == receivable_account and line.partner_id)
+                (invoice_receivables | payment_receivables).sudo().with_company(self.company_id).reconcile()
         return payment_moves
 
     @api.model