From c210445f5dd2e12ea364ca30b9277f2a1277df2d Mon Sep 17 00:00:00 2001
From: Jan Kassens <jan@kassens.net>
Date: Wed, 29 Mar 2017 14:49:04 -0700
Subject: [PATCH] Do not warn about legacy __configs__ name

---
 src/utilities/assertValidName.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/utilities/assertValidName.js b/src/utilities/assertValidName.js
index 636f55590c..7c334a3df8 100644
--- a/src/utilities/assertValidName.js
+++ b/src/utilities/assertValidName.js
@@ -26,7 +26,16 @@ export function assertValidName(
       `Must be named. Unexpected name: ${name}.`
     );
   }
-  if (!isIntrospection && name.slice(0, 2) === '__' && !hasWarnedAboutDunder) {
+  // For legacy reasons, __type__ and __configs__ should not generate a warning
+  // until the usage of these fields is cleaned up from the Facebook internal
+  // schemas.
+  if (
+    !isIntrospection &&
+    name.slice(0, 2) === '__' &&
+    name !== '__configs__' &&
+    name !== '__type__' &&
+    !hasWarnedAboutDunder
+  ) {
     hasWarnedAboutDunder = true;
     /* eslint-disable no-console */
     if (console && console.warn) {