From a0d1faa383de378795d2aacd0a2494b8610b891e Mon Sep 17 00:00:00 2001
From: Boone Gorges <boonebgorges@gmail.com>
Date: Sat, 3 Jan 2015 02:05:22 +0000
Subject: [PATCH] In `Walker_Category`, don't generate list elements for empty
 cat names.

This change allows the 'list_cats' filter to be used to suppress certain
items in category lists, without creating invalid or superfluous markup.

Props samo9789.
Fixes #16792.
Built from https://develop.svn.wordpress.org/trunk@31025


git-svn-id: http://core.svn.wordpress.org/trunk@31006 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/category-template.php | 5 +++++
 wp-includes/version.php           | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/wp-includes/category-template.php b/wp-includes/category-template.php
index 7f2c539676..ad66987f7b 100644
--- a/wp-includes/category-template.php
+++ b/wp-includes/category-template.php
@@ -996,6 +996,11 @@ class Walker_Category extends Walker {
 			$category
 		);
 
+		// Don't generate an element if the category name is empty.
+		if ( ! $cat_name ) {
+			return;
+		}
+
 		$link = '<a href="' . esc_url( get_term_link( $category ) ) . '" ';
 		if ( $args['use_desc_for_title'] && ! empty( $category->description ) ) {
 			/**
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 937b4b977e..4de1766b33 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31024';
+$wp_version = '4.2-alpha-31025';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.