[wp-trac] [WordPress Trac] #27330: Custom post type disapears from menu editor after update/first install.

[WordPress Trac]

#27330: Custom post type disapears from menu editor after update/first install.
--------------------------+-----------------------------
 Reporter:  CyberSpy      |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  3.8.1
 Severity:  normal        |   Keywords:
  Focuses:  template      |
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 To reproduce the bug:
 1. Get clean 3.8.1 installation
 2. Edit functions.php of 2014 theme and add at the end:

 {{{
 add_action( 'init', 'vocabulary_register_post_type' );
 function vocabulary_register_post_type() {
         $labels = array(
                         'name'                           => 'Słowniczek',
             'singular_name'      => 'Pojęcie',
             'menu_name'          => 'Pojęcia',
             'name_admin_bar'     => 'Pojęcie',
             'add_new'                    => 'Dodaj nowe pojęcie',
             'add_new_item'               => 'Dodaj nowe pojęcie',
             'edit_item'                  => 'Edytuj pojęcie',
             'new_item'                   => 'Nowe pojęcie',
             'view_item'                  => 'Wyswietl pojęcie',
             'all_items'          => 'Wszystkie pojęcia',
             'search_items'               => 'Wyszukaj pojęcia',
             'parent_item_colon'  => 'Nadrzędne książki',
             'not_found'                  => 'Pojęć nie znaleziono',
             'not_found_in_trash' => 'Brak usuniętych pojęć'
         );
         $product_args = array(
                 'public'             => true,
                 'publicly_queryable' => true,
                 'show_ui'            => true,
                 'show_in_menu'       => true,
                 'query_var'          => true,
                 'rewrite'            => array( 'slug' => 'vocabulary' ),
                 'capability_type'    => 'post',
                 'has_archive'        => true,
                 'hierarchical'       => false,
                 'menu_position'      => null,
                 'supports'           => array( 'title', 'editor',
 'author', 'thumbnail', 'excerpt', 'comments' ),
         'labels'                         => $labels
     );
         register_post_type( 'vocabulary', $product_args );
 }
 }}}
 (thats just a sample code from my project)

 3. Install wp, get into admin, go to Appearance -> Menus
 4. Check "Screen options" - custom post type "Slowniczkek" is hidden.

 Now same process but:
 1. Get clean 3.8.1 installation
 2. Install wp, get into admin, go to Appearance -> Menus
 3. Edit functions.php of 2014 theme and add the registering process at the
 end of functions.php
 4. Reload Appearance -> Menus - custom post type "Slowniczek" is visible.

 It looks like same problem (with hiding custom post types) happens while
 updating to 3.8.1

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Ticket URL: <https://core.trac.wordpress.org/ticket/27330>
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