From 55a8be5a6c0f469fb8a38d368a70e84a4eddd9bb Mon Sep 17 00:00:00 2001
From: Michelle Tilley <binarymuse@github.com>
Date: Tue, 1 Nov 2016 11:32:33 -0700
Subject: [PATCH] Don't modify original transpiler specs

---
 src/package-transpilation-registry.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/package-transpilation-registry.js b/src/package-transpilation-registry.js
index b8a792339..7943e80e8 100644
--- a/src/package-transpilation-registry.js
+++ b/src/package-transpilation-registry.js
@@ -23,7 +23,7 @@ class PackageTranspilationRegistry {
       name: packageName,
       meta: packageMeta,
       path: packagePath,
-      specs: config
+      specs: config.map(spec => Object.assign({}, spec))
     }
   }