[IMP] account.invoice: include origin in payment reference

Makes it easier to later reconcile payments with
bank statements. For eCommerce orders the payment
transaction happens before the creation of the invoice,
so the invoice number is not sufficient to quickly
find a match for reconciliation.

addons/account/models/account_invoice.py

@@ -1017,11 +1017,15 @@ class AccountInvoice(models.Model):
         if payment_method not in journal_payment_methods:
             raise UserError(_('No appropriate payment method enabled on journal %s') % pay_journal.name)
 
+        communication = self.type in ('in_invoice', 'in_refund') and self.reference or self.number
+        if self.origin:
+            communication = '%s (%s)' % (communication, self.origin)
+
         payment = self.env['account.payment'].create({
             'invoice_ids': [(6, 0, self.ids)],
             'amount': pay_amount or self.residual,
             'payment_date': date or fields.Date.context_today(self),
-            'communication': self.type in ('in_invoice', 'in_refund') and self.reference or self.number,
+            'communication': communication,
             'partner_id': self.partner_id.id,
             'partner_type': self.type in ('out_invoice', 'out_refund') and 'customer' or 'supplier',
             'journal_id': pay_journal.id,