[jQuery] Superfish - Tabbing through menu when it's a nested ul causes the menu to disappear

[jQuery] Superfish - Tabbing through menu when it's a nested ul causes the menu to disappear


I'm doing some accessibility testing with superfish. I have the "sf-
menu" ul as the child of another list item. After tabbing through the
entire sf-menu, it disappears. Any suggestions?
It is nested as follows.
ul -> li -> ul sf-menu