Theme Customizer: Properly pass arguments by reference to WP_Customize_Setting->multidimensional(). see #19910, [20136], #20163.

This is necessary for WP_Customize_Setting->multidimensional_replace() to work properly on multidimensional arrays (which was, as the name indicates, the point of the function in the first place).

git-svn-id: http://svn.automattic.com/wordpress/trunk@20300 1a063a9b-81f0-0310-95a4-ce76da25c4cd

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

@@ -265,7 +265,7 @@ class WP_Customize_Setting {
 	 * @param bool $create Default is false.
 	 * @return null|array
 	 */
-	final protected function multidimensional( $root, $keys, $create = false ) {
+	final protected function multidimensional( &$root, $keys, $create = false ) {
 		if ( $create && empty( $root ) )
 			$root = array();