Taxonomy Terms nesting incorrectly in menus

[disinfor]

When creating a menu structure with a custom taxonomy term as a menu parent and taxonomy terms as sub items, the sub items are not nesting in the submenu <ul>. They are being output outside of the submenu <ul> on the same markup level as the parent <li>.

[disinfor]

Output example

[disinfor]

The five <li> elements at the bottom should be within the <ul> with the class dropdown-menu.

Tested in 4.3.1 and 4.4beta.

[ocean90]

From your screenshot it looks like the theme/or a plugin is changing the menu markup. Does it still happen with all plugins disabled and a default theme activated?

[disinfor]

I'm checking that now, but I'm going to mark this as invalid as I'm doing more testing just to clear the queue. I did disable plugins prior to making the issue.