From 5ed45d21a437edfb88292050c0c65a45b75f21dc Mon Sep 17 00:00:00 2001
From: Alexander Kozlovsky <alexander.kozlovsky@gmail.com>
Date: Mon, 21 Jan 2019 10:09:38 +0300
Subject: [PATCH] Fix reading NULL from optional nullable array column

---
 pony/orm/dbapiprovider.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pony/orm/dbapiprovider.py b/pony/orm/dbapiprovider.py
index 378f3bff4..50caac12d 100644
--- a/pony/orm/dbapiprovider.py
+++ b/pony/orm/dbapiprovider.py
@@ -846,7 +846,7 @@ def validate(converter, val, obj=None):
         return TrackedArray(obj, converter.attr, items)
 
     def dbval2val(converter, dbval, obj=None):
-        if obj is None:
+        if obj is None or dbval is None:
             return dbval
         return TrackedArray(obj, converter.attr, dbval)