From df56f9d6f9a85e9a22f845908eae46db09cd5d1d Mon Sep 17 00:00:00 2001
From: Xiang Li <xiangli.cs@gmail.com>
Date: Wed, 15 Jun 2016 15:32:58 -0700
Subject: [PATCH] store: copy old value when refresh + cas

---
 store/store.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/store/store.go b/store/store.go
index 16631002b..f0a1fe538 100644
--- a/store/store.go
+++ b/store/store.go
@@ -298,6 +298,10 @@ func (s *store) CompareAndSwap(nodePath string, prevValue string, prevIndex uint
 		return nil, err
 	}
 
+	if expireOpts.Refresh {
+		value = n.Value
+	}
+
 	// update etcd index
 	s.CurrentIndex++