From 3d88725c97847914a1aae4954d96b68c0ef036f2 Mon Sep 17 00:00:00 2001
From: Andrey Astafyev <dev@246060.ru>
Date: Thu, 25 Apr 2019 14:52:57 +0300
Subject: [PATCH] Allow empty summary

---
 pandoc_reader.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pandoc_reader.py b/pandoc_reader.py
index 504132b..acd072f 100644
--- a/pandoc_reader.py
+++ b/pandoc_reader.py
@@ -40,6 +40,9 @@ class PandocReader(BaseReader):
                 name, value = k.lower(), parsed[k]
                 metadata[name] = self.process_metadata(name, value)
 
+            if (not 'summary' in metadata) or (metadata['summary'] is None):
+                metadata['summary'] = ''
+
             # Return the text entirely.
             content = "\n".join(text)