From 9906a19e295a7ce3710970e69a2b3b2f82b006b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Bedna=C5=99=C3=ADk?= <jan.bednarik@gmail.com>
Date: Sat, 25 Jul 2015 15:38:27 +0200
Subject: [PATCH] Issue #751 - fix.

---
 _pytest/mark.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/_pytest/mark.py b/_pytest/mark.py
index c3dc692f0..50581e0a8 100644
--- a/_pytest/mark.py
+++ b/_pytest/mark.py
@@ -291,7 +291,7 @@ class MarkInfo:
         #: positional argument list, empty if none specified
         self.args = args
         #: keyword argument dictionary, empty if nothing specified
-        self.kwargs = kwargs
+        self.kwargs = kwargs.copy()
         self._arglist = [(args, kwargs.copy())]
 
     def __repr__(self):