[wp-trac] [WordPress Trac] #35362: Empty `items_wrap` `wp_nav_menu` randomly breaks customizer

[WordPress Trac]

#35362: Empty `items_wrap` `wp_nav_menu` randomly breaks customizer
--------------------------+--------------------------
 Reporter:  ojrask        |       Owner:  westonruter
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:  4.5
Component:  Customize     |     Version:  4.4
 Severity:  normal        |  Resolution:  fixed
 Keywords:  has-patch     |     Focuses:
--------------------------+--------------------------
Changes (by westonruter):

 * status:  accepted => closed
 * resolution:   => fixed


Comment:

 In [changeset:"36889"]:
 {{{
 #!CommitTicketReference repository="" revision="36889"
 Customize: Fix regressions and harden implementation of selective refresh
 for nav menus.

 * Request full refresh if there are nav menu instances that lack partials
 for a changed setting.
 * Restore `WP_Customize_Nav_Menus::$preview_nav_menu_instance_args` and
 `WP_Customize_Nav_Menus::export_preview_data()` from 4.3, and keeping a
 tally of all `wp_nav_menu()` calls regardless of whether they can use
 selective refresh.
 * Ensure that all instances of `wp_nav_menu()` are tallied, regardless of
 whether they are made during the initial preview call or during subsequent
 partial renderings. Export `nav_menu_instance_args` with each partial
 rendering response just as they are returned when rendering the preview as
 a whole.
 * Fix issues with Custom Menu widget where nav menu items would fail to
 render when switching between menus when a menu lacked items to begin
 with.
 * Make sure the fallback behavior is invoked when the partial is no longer
 associated with a menu.
 * Do fallback behavior to refresh preview when all menu items are removed
 from a menu.

 Follows [36586].
 See #27355.
 Fixes #35362.
 }}}

--
Ticket URL: <https://core.trac.wordpress.org/ticket/35362#comment:15>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform