From 33d580d18cb2c3c24172d8ec5700909a7212d847 Mon Sep 17 00:00:00 2001
From: Daniel Bachhuber <daniel@bachhuber.co>
Date: Thu, 5 Jul 2018 06:07:44 -0700
Subject: [PATCH] Comment on the special casing for `undefined`

---
 core-blocks/audio/edit.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core-blocks/audio/edit.js b/core-blocks/audio/edit.js
index 137d8532b0b9a6..a76ae3c5b30670 100644
--- a/core-blocks/audio/edit.js
+++ b/core-blocks/audio/edit.js
@@ -105,6 +105,7 @@ class AudioEdit extends Component {
 					<SelectControl
 						label={ __( 'Preload' ) }
 						value={ undefined !== preload ? preload : 'none' }
+						// `undefined` is required for the preload attribute to be unset.
 						onChange={ ( value ) => setAttributes( { preload: 'none' !== value ? value : undefined } ) }
 						options={ [
 							{ value: 'auto', label: __( 'Auto' ) },