In `tb_show()` in `thickbox`, when loading content into `#TB_ajaxContent`, make sure a URL with no `?` doesn't break when `&random=` is appended to it.

Thickbox hasn't been updated since 2007, just FYI.

Fixes #31726.

Built from https://develop.svn.wordpress.org/trunk@32503


git-svn-id: http://core.svn.wordpress.org/trunk@32473 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/thickbox/thickbox.js

@@ -231,7 +231,9 @@ function tb_show(caption, url, imageGroup) {//function called when the user clic
 					jQuery("#TB_load").remove();
 					jQuery("#TB_window").css({'visibility':'visible'});
 				}else{
-					jQuery("#TB_ajaxContent").load(url += "&random=" + (new Date().getTime()),function(){//to do a post change this load method
+					var load_url = url;
+					load_url += -1 === url.indexOf('?') ? '?' : '&';
+					jQuery("#TB_ajaxContent").load(load_url += "random=" + (new Date().getTime()),function(){//to do a post change this load method
 						tb_position();
 						jQuery("#TB_load").remove();
 						tb_init("#TB_ajaxContent a.thickbox");

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.3-alpha-32502';
+$wp_version = '4.3-alpha-32503';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.