убрал дубли при выборе городов в админке

apps/city/admin.py

@@ -101,7 +101,7 @@ def search_city(request):
         qs = City.objects.language().filter(country=country)[:200]
     else:
         qs = City.objects.language().filter(country=country, translations__name__contains=term)
-    result = [{'id': city.id, 'label': city.name} for city in qs]
+    result = list(set([{'id': city.id, 'label': city.name} for city in qs]))
     return JsonResponse(json.dumps(result), content_type='application/json', safe=False)