From 0fc1b94d743f8b2e89ecbec309717d465bce52e4 Mon Sep 17 00:00:00 2001
From: Marcio Mazza <marciomazza@gmail.com>
Date: Mon, 4 Sep 2017 17:24:38 -0300
Subject: [PATCH] =?UTF-8?q?Verifica=20se=20norma.cod=5Fassunto=20=C3=A9=20?=
 =?UTF-8?q?nulo=20antes=20de=20ajustar?=
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---
 sapl/legacy/migration.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sapl/legacy/migration.py b/sapl/legacy/migration.py
index 06fe7e800..d7744418a 100644
--- a/sapl/legacy/migration.py
+++ b/sapl/legacy/migration.py
@@ -787,6 +787,9 @@ def adjust_normajuridica_antes_salvar(new, old):
 def adjust_normajuridica_depois_salvar(new, old):
     # Ajusta relação M2M
 
+    if not old.cod_assunto:  # it can be null or empty
+        return
+
     # lista de pks separadas por vírgulas (ignorando strings vazias)
     lista_pks_assunto = [int(pk) for pk in old.cod_assunto.split(',') if pk]