Customize: Remove `theme_installing` notification when installation fails.

Amends [41648].
Props celloexpressions.
See #42184, #37661.

Built from https://develop.svn.wordpress.org/trunk@42018


git-svn-id: http://core.svn.wordpress.org/trunk@41852 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/updates.js

@@ -1193,7 +1193,7 @@
 				$button = $( '.theme-install[data-slug="' + response.slug + '"]' );
 				$card   = $button.closest( '.theme' ).addClass( 'theme-install-failed' ).append( $message );
 			}
-			$( '.wp-full-overlay' ).removeClass( 'customize-loading' );
+			wp.customize.notifications.remove( 'theme_installing' );
 		} else {
 			if ( $document.find( 'body' ).hasClass( 'full-overlay-active' ) ) {
 				$button = $( '.theme-install[data-slug="' + response.slug + '"]' );

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta3-42017';
+$wp_version = '4.9-beta3-42018';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.