Merge branch 'hotfix/gift-cert-fix' into 'master'

не работает код для подарочного сертификата

See merge request lilschool/site!284

apps/payment/views.py

@@ -388,7 +388,7 @@ class GiftCertificateGetView(TemplateView):
             ugs = get_object_or_404(UserGiftCertificate, pk=short_url.decode_url(slug))
         except:
             raise Http404()
-        if UserBonus.objects.filter(payment=ugs.payment).exists():
+        if request.user.bonuses.filter(payment=ugs.payment).exists():
             raise Http404()
         bonuses = UserBonus.objects.create(user=request.user, amount=ugs.gift_certificate.price,
                                            payment=ugs.payment)