update

trans2es/models/topic.py

@@ -326,9 +326,10 @@ class Topic(models.Model):
                 dt = max(datetime_list)
                 return datetime.datetime(dt.year,dt.month,dt.day,dt.hour, dt.minute, dt.second,tzinfo=datetime.timezone(datetime.timedelta(hours=8)))
             else:
-                return self.create_time
+                dt = self.create_time
+                return datetime.datetime(dt.year,dt.month,dt.day,dt.hour, dt.minute, dt.second,tzinfo=datetime.timezone(datetime.timedelta(hours=8)))
         except:
-            return self.create_time
+            return datetime.datetime(1980,1,1,0,0,0,tzinfo=datetime.timezone(datetime.timedelta(hours=8)))
 
 
 class TopicComplaint(models.Model):