related questions were showing deleted questions

forum/models/question.py

@@ -168,7 +168,7 @@ def get_related_questions(self, count=10):
 
         if related_list is None:
             related_list = Question.objects.values('id').filter(tags__id__in=[t.id for t in self.tags.all()]
-            ).exclude(id=self.id).annotate(frequency=models.Count('id')).order_by('-frequency')[:count]
+            ).exclude(id=self.id, deleted=True).annotate(frequency=models.Count('id')).order_by('-frequency')[:count]
             cache.set(cache_key, related_list, 60 * 60)
 
         return [Question.objects.get(id=r['id']) for r in related_list]