Admin menu CSS does not consistently account for menus without submenus
|Reported by:||nacin||Owned by:||nacin|
In multisite, the Plugins menu only has Installed Plugins under it. When there is only one submenu, it gets removed. This means that when Plugins is the current menu (thus receiving the class of "current"), it is missing the class of "wp-has-current-submenu", which it would normally receive in single-site.
I noticed the issue. Menus that commonly have no submenu items have the correct CSS classes to target .current (Dashboard, Comments, etc.) but Plugins and others do not. We should simply make sure that all icon declarations use the same selectors.