Right now, hierarchical tags only show the last child of each tree in the tags field in the browser (right side section). So I see things like …::irregular or …::simple instead or form::irregular, or nonpersonal::infinitive::simple. The only way that I know to check the full tree is by hovering the mouse over them.
This could be solved by lengthening the tag section just as it happens when individual tags are shown, and wrapping the content. Or maybe making those labels expandable when clicking on them or on some symbol?