From de360c61dd239ef44e2d2abd9c4ce835f1144cf8 Mon Sep 17 00:00:00 2001
From: Ivan Pogrebkov <chezhik@gmail.com>
Date: Mon, 5 Feb 2018 04:26:25 +0300
Subject: [PATCH] removed useless lines

---
 mongoengine/document.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mongoengine/document.py b/mongoengine/document.py
index d635d62e..f1622934 100644
--- a/mongoengine/document.py
+++ b/mongoengine/document.py
@@ -1010,7 +1010,6 @@ class DynamicDocument(Document):
         field_name = args[0]
         if field_name in self._dynamic_fields:
             setattr(self, field_name, None)
-            self._dynamic_fields[field_name].null = False
         else:
             super(DynamicDocument, self).__delattr__(*args, **kwargs)