[wp-trac] [WordPress Trac] #33187: Menu becomes empty after saving in WordPress 4.2.3

WordPress Trac noreply at wordpress.org
Tue Aug 11 14:53:39 UTC 2015

#33187: Menu becomes empty after saving in WordPress 4.2.3
 Reporter:  jcexygy                  |       Owner:  boonebgorges
     Type:  defect (bug)             |      Status:  reviewing
 Priority:  normal                   |   Milestone:  4.3
Component:  Taxonomy                 |     Version:  4.2
 Severity:  major                    |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:  administration
Changes (by boonebgorges):

 * keywords:   => has-patch needs-testing
 * severity:  normal => major


 jcexygy - Thanks very much for the report.

 When we built the term-splitting logic in 4.2, we accounted for terms
 associated with specific nav items, but we totally missed the 'nav_menu'
 terms themselves.

 Two fixes are required to make it work. See [attachment:33187.diff] and
 associated tests:

 1. `wp_update_nav_menu_object()` returns the ID of the menu term, and that
 ID is used to perform other updates (like updating the associated nav
 items). Previously, the ID passed to the function was being blindly
 returned, regardless of what was returned by the internal call to
 `wp_update_term()`. 33187.diff fixes this, and modifies wp-admin/nav-
 menus.php so that it redirects to a correct URL (?menu=123) if the
 nav_menu ID changes.
 2. When a nav_menu term is split, the corresponding entries in
 'nav_menu_locations' must be changed. See

Ticket URL: <https://core.trac.wordpress.org/ticket/33187#comment:3>
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