From c17f86e65915987faa6382c784ba7be9f31f4730 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Thu, 7 Apr 2016 12:03:40 +0200
Subject: [PATCH] qubes: fix handling DEFAULT special value for VMProperty

---
 qubes/__init__.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/qubes/__init__.py b/qubes/__init__.py
index 9e7344a4..1a805cc6 100644
--- a/qubes/__init__.py
+++ b/qubes/__init__.py
@@ -1072,6 +1072,10 @@ class VMProperty(property):
 
 
     def __set__(self, instance, value):
+        if value is self.__class__.DEFAULT:
+            self.__delete__(instance)
+            return
+
         if value == self._none_value:
             value = None
         if value is None: