Extra entries when searching organizations

[pdekraker-epa]

I am unsure what the expected behavior of hierarchy_display is when searching for organizations, but I see some top level organizations displayed with all their children, none of which are highlighted, which I believe would indicate that none matched the search query. I would expect matching organizations to be highlighted and their parents & children (not siblings) displayed. I have observed this behavior with CKAN 2.7 and 2.8