タイトルが同じだと投稿できない不具合の対応

wp-includes/post.phpの1266行目以降

if ($post_name_check || in_array($post_name, $wp_rewrite->feeds) ) {
?$suffix = 2;
?do {
??$alt_post_name = substr($post_name, 0, 200-(strlen($suffix)+1)). “-$suffix”;
??$alt_post_name = urldecode ($alt_post_name);?//★追加
??// expected_slashed ($alt_post_name, $post_name, $post_type)
??$post_name_check = $wpdb->get_var($wpdb->prepare(“SELECT post_name FROM $wpdb->posts WHERE post_name = ‘$alt_post_name’ AND post_type = ‘$post_type’ AND ID != %d AND post_parent = %d LIMIT 1”, $post_ID, $post_parent));
??$suffix++;
?} while ($post_name_check);
?$post_name =urlencode($alt_post_name);?//★変更
}