do not send notification if amount to pay is zero (#10984)

synchro_orleans/data/management/commands/email_new_invoices.py

@@ -77,6 +77,8 @@ class Command(BaseCommand):
                 notification = InvoiceNotificationEmail.objects.filter(invoice_number=invoice.id).latest()
                 if notification.date_sent > make_aware(datetime.now(), get_current_timezone()) - timedelta(days=notification_timeout):
                     continue
+                if invoice.solde == 0:
+                    continue
             except InvoiceNotificationEmail.DoesNotExist:
                 pass