From c1eec1e582d8225fd4cfe5a4fe5a1d042421952f Mon Sep 17 00:00:00 2001
From: Sambhav Kothari <sambhavs.email@gmail.com>
Date: Tue, 20 Mar 2018 14:25:05 +0530
Subject: [PATCH] PICARD-1230: Fix TypeError due to None type objects in string
 join

---
 picard/mbjson.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/picard/mbjson.py b/picard/mbjson.py
index d44de1035..4033a6b99 100644
--- a/picard/mbjson.py
+++ b/picard/mbjson.py
@@ -262,8 +262,8 @@ def release_dates_and_countries_from_node(node):
     countries = []
     if "release-events" in node:
         for release_event in node['release-events']:
-            dates.append(release_event['date'])
-            country_code = None
+            dates.append(release_event['date'] or '')
+            country_code = ''
             try:
                 country_code = release_event['area']['iso-3166-1-codes'][0]
             # TypeError in case object is None