Customize: Fix rendering issues in theme browsing when opening theme details or performing search in Safari.

Props sayedwp.
See #37661.
Fixes #42052.

Built from https://develop.svn.wordpress.org/trunk@41948


git-svn-id: http://core.svn.wordpress.org/trunk@41782 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/css/customize-controls-rtl.css

@@ -2317,6 +2317,10 @@ p.customize-section-description {
 	z-index: -1;
 }
 
+.wp-full-overlay.in-themes-panel.themes-panel-expanded #customize-controls .wp-full-overlay-sidebar-content {
+	overflow: visible;
+}
+
 .wp-customizer .theme-overlay .theme-backdrop {
 	background: rgba( 238, 238, 238, 0.75 );
 	position: fixed;

wp-admin/css/customize-controls.css

@@ -2317,6 +2317,10 @@ p.customize-section-description {
 	z-index: -1;
 }
 
+.wp-full-overlay.in-themes-panel.themes-panel-expanded #customize-controls .wp-full-overlay-sidebar-content {
+	overflow: visible;
+}
+
 .wp-customizer .theme-overlay .theme-backdrop {
 	background: rgba( 238, 238, 238, 0.75 );
 	position: fixed;

wp-admin/js/customize-controls.js

@@ -3065,13 +3065,17 @@
 					.addClass( 'in-themes-panel' )
 					.delay( 200 ).find( '.customize-themes-full-container' ).addClass( 'animate' );
 
+				_.delay( function() {
+					overlay.addClass( 'themes-panel-expanded' );
+				}, 200 );
+
 				// Automatically open the installed themes section (except on small screens).
 				if ( 600 < window.innerWidth ) {
 					api.section( 'installed_themes' ).expand();
 				}
 			} else {
 				overlay
-					.removeClass( 'in-themes-panel' )
+					.removeClass( 'in-themes-panel themes-panel-expanded' )
 					.find( '.customize-themes-full-container' ).removeClass( 'animate' );
 			}
 		},

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta3-41947';
+$wp_version = '4.9-beta3-41948';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.