Robert Anderson ac71fffac0 Customize: Ensure multiple CSS classes are passed to nav_menu_link_attributes as an array
When multiple CSS classes are added to a menu item, the nav_menu_link_attributes
filter should be called with $item->classes set to an array of CSS class names.

When previewing in the Customizer, however, a single string was being passed to
$item->classes because WP_Customize_Nav_Menu_Item_Setting::preview() bypasses
wp_update_nav_menu_item() and instead uses filter_wp_get_nav_menu_items().

The fix is to make filter_wp_get_nav_menu_items() match what
wp_update_nav_menu_item() does and split the string into an array.

Fixes #43113.
Props dlh.


git-svn-id: https://develop.svn.wordpress.org/trunk@49624 602fd350-edb4-49c9-b593-d223f7449a82
2020-11-17 04:29:02 +00:00
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2020-06-26 13:31:11 +00:00