Peter Wilson 62de6cc7ec Menus: Prevent empty class attribute following [40537]. ...

Prevents an empty class attribute, `class=""`, from appearing in the HTML if a developer removes all classes using the `nav_menu_submenu_css_class` filter.

Props Kopepasah.
Fixes #36163.

Built from https://develop.svn.wordpress.org/trunk@40665


git-svn-id: http://core.svn.wordpress.org/trunk@40528 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2017-05-14 03:38:48 +00:00

8.2 KiB

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