Customizer: Fix name of a partial in `export_header_video_settings()`

Following [38985], this updates a check for partials being set in
`export_header_video_settings()` to use the correct name.

Props bradyvercher.
See #38172.
Built from https://develop.svn.wordpress.org/trunk@38989


git-svn-id: http://core.svn.wordpress.org/trunk@38932 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-customize-manager.php

@@ -3782,7 +3782,7 @@ final class WP_Customize_Manager {
 	 * @return array
 	 */
 	public function export_header_video_settings( $response, $selective_refresh, $partials ) {
-		if ( isset( $partials['header_video'] ) || isset( $partials['external_header_video'] ) ) {
+		if ( isset( $partials['custom_header'] ) ) {
 			$response['custom_header_settings'] = get_header_video_settings();
 		}
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.7-alpha-38988';
+$wp_version = '4.7-alpha-38989';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.