From 7d4176dd501edaee974ccc9d75826ab6cf7c6bff Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <hans@eds.org>
Date: Thu, 23 Mar 2017 23:13:37 +0100
Subject: [PATCH] metadata: don't crash if metadata includes blank Categories
 list

If someone includes just 'Categories:', it shouldn't crash.
---
 fdroidserver/metadata.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fdroidserver/metadata.py b/fdroidserver/metadata.py
index da4730cb..1d978dcc 100644
--- a/fdroidserver/metadata.py
+++ b/fdroidserver/metadata.py
@@ -815,6 +815,8 @@ def post_metadata_parse(app):
 
     if isinstance(app.Categories, str):
         app.Categories = [app.Categories]
+    elif app.Categories is None:
+        app.Categories = ['None']
     else:
         app.Categories = [str(i) for i in app.Categories]