From e55d40d451158dcb03c03712981fd665d5bf64f2 Mon Sep 17 00:00:00 2001
From: Zebulan Stanphill <zebulanstanphill@protonmail.com>
Date: Sat, 21 Mar 2020 18:01:20 -0500
Subject: [PATCH] Undo this one since rootChildBlocks can be undefined.

---
 packages/block-editor/src/components/inserter/block-list.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/block-editor/src/components/inserter/block-list.js b/packages/block-editor/src/components/inserter/block-list.js
index caf1950ba28fb..cbbfe9cee473d 100644
--- a/packages/block-editor/src/components/inserter/block-list.js
+++ b/packages/block-editor/src/components/inserter/block-list.js
@@ -9,6 +9,7 @@ import {
 	flow,
 	sortBy,
 	groupBy,
+	includes,
 	isEmpty,
 	without,
 } from 'lodash';
@@ -201,7 +202,7 @@ function InserterBlockList( {
 
 	const childItems = useMemo( () => {
 		return filter( filteredItems, ( { name } ) =>
-			rootChildBlocks.includes( name )
+			includes( rootChildBlocks, name )
 		);
 	}, [ filteredItems, rootChildBlocks ] );