From 9e574e9d8c6e4d6377a6fcefe1579bb998c7223a Mon Sep 17 00:00:00 2001
From: Julien Palard <julien@palard.fr>
Date: Fri, 30 Sep 2016 15:33:05 +0200
Subject: [PATCH] Just in case someone forgot the
 DUPLICATES_DEFINITIONS_ALLOWED but add in METADATA_PROCESSORS.

---
 pelican/readers.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pelican/readers.py b/pelican/readers.py
index 56e54355..5220f1a0 100644
--- a/pelican/readers.py
+++ b/pelican/readers.py
@@ -278,7 +278,8 @@ class MarkdownReader(BaseReader):
                 self._md.reset()
                 formatted = self._md.convert(formatted_values)
                 output[name] = self.process_metadata(name, formatted)
-            elif not DUPLICATES_DEFINITIONS_ALLOWED.get(name, True):
+            elif (not DUPLICATES_DEFINITIONS_ALLOWED.get(name, True) or
+                  name in METADATA_PROCESSORS):
                 if len(value) > 1:
                     logger.warning(
                         'Duplicate definition of `%s` '