From ef2b71415831666e1e8774931209fa584843d969 Mon Sep 17 00:00:00 2001
From: Logan Smyth <loganfsmyth@gmail.com>
Date: Fri, 16 Nov 2018 17:49:02 -0800
Subject: [PATCH] Normalize presets before merging config with others.

---
 packages/babel-core/src/config/config-chain.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/babel-core/src/config/config-chain.js b/packages/babel-core/src/config/config-chain.js
index 1dcb7b83fdba..3bbedcdff1a9 100644
--- a/packages/babel-core/src/config/config-chain.js
+++ b/packages/babel-core/src/config/config-chain.js
@@ -67,7 +67,7 @@ export function buildPresetChain(
   return {
     plugins: dedupDescriptors(chain.plugins),
     presets: dedupDescriptors(chain.presets),
-    options: chain.options,
+    options: chain.options.map(o => normalizeOptions(o)),
   };
 }