From 1479e926ef9a199f47eee5f0e3270f7c7e9ff207 Mon Sep 17 00:00:00 2001
From: Jono MacDougall <jonomacd@gmail.com>
Date: Wed, 1 Feb 2017 12:26:03 +0000
Subject: [PATCH] fix a very rare map race

---
 utils.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/utils.go b/utils.go
index 25e3a4f9..6e5faaee 100644
--- a/utils.go
+++ b/utils.go
@@ -19,12 +19,15 @@ func init() {
 }
 
 var smap = map[string]string{}
-var mutex = &sync.Mutex{}
+var mutex = &sync.RWMutex{}
 
 func ToDBName(name string) string {
+	mutex.RLock()
 	if v, ok := smap[name]; ok {
+		mutex.RUnlock()
 		return v
 	}
+	mutex.RUnlock()
 
 	value := commonInitialismsReplacer.Replace(name)
 	buf := bytes.NewBufferString("")