убрал дубли при выборе городов в админке

apps/city/admin.py

@@ -98,10 +98,10 @@ def search_city(request):
     term = request.GET.get('term')
     country = request.GET.get('country')
     if not term:
-        qs = City.objects.language().filter(country=country)[:200]
+        qs = City.objects.language().filter(country=country).distinct()[:200]
     else:
-        qs = City.objects.language().filter(country=country, translations__name__contains=term)
-    result = list(set([{'id': city.id, 'label': city.name} for city in qs]))
+        qs = City.objects.language().filter(country=country, translations__name__contains=term).distinct()
+    result = [{'id': city.id, 'label': city.name} for city in qs]
     return JsonResponse(json.dumps(result), content_type='application/json', safe=False)