From 1c004ef2070baad89083ae5448b460b4df7ef5ed Mon Sep 17 00:00:00 2001
From: j <0x006A@0x2620.org>
Date: Mon, 24 Feb 2014 15:52:55 +0530
Subject: [PATCH] only null string fields in sort

---
 pandora/item/models.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pandora/item/models.py b/pandora/item/models.py
index 26b4266c..c23e810d 100644
--- a/pandora/item/models.py
+++ b/pandora/item/models.py
@@ -776,10 +776,10 @@ class Item(models.Model):
             return sort_value
 
         def set_value(s, name, value):
-            if not value:
-                value = None
             if isinstance(value, basestring):
                 value = ox.decode_html(value.lower())
+                if not value:
+                    value = None
             setattr(s, name, value)
 
         base_keys = (