From 939b05f185958723f833dcbc707a066bf3359c7e Mon Sep 17 00:00:00 2001
From: Massimiliano Pippi <masci@evonove.it>
Date: Sat, 21 Sep 2013 01:13:20 +0200
Subject: fixed operator precedence in duplicate_params property

---
 oauthlib/common.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/oauthlib/common.py b/oauthlib/common.py
index 5128efe..4a95f30 100644
--- a/oauthlib/common.py
+++ b/oauthlib/common.py
@@ -382,7 +382,7 @@ class Request(object):
     @property
     def duplicate_params(self):
         seen_keys = collections.defaultdict(int)
-        all_keys = (p[0] for p in self.decoded_body or [] + self.uri_query_params)
+        all_keys = (p[0] for p in (self.decoded_body or []) + self.uri_query_params)
         for k in all_keys:
             seen_keys[k] += 1
         return [k for k, c in seen_keys.items() if c > 1]
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