From 34252ad11fe31df089d647b7dfaee21e49ef10c0 Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Thu, 11 Apr 2013 12:36:53 -0400
Subject: [PATCH] fix #2829, regression in reload

---
 base/loading.jl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/base/loading.jl b/base/loading.jl
index b6e7b64e3e8a9..df0446246818c 100644
--- a/base/loading.jl
+++ b/base/loading.jl
@@ -117,7 +117,9 @@ function reload_path(path)
             tls[:SOURCE_PATH] = prev
         end
     end
-    put(package_locks[path],nothing)
+    if !isready(package_locks[path])
+        put(package_locks[path],nothing)
+    end
     nothing
 end