Library.HasContent(Moviesets)

If we want to show a collection case for moviesets we have:
Library.HasContent(Moviesets)

but the collection case returns true for moviesets, tv shows and seasons?

I've tried with:
<value condition="Library.HasContent(Moviesets) | !Container.Content(TVShows) | !Container.Content(Seasons)">extras/flagging/cases/collection.png</value>
<value condition="Container.Content(TVShows) | Container.Content(Seasons)">extras/flagging/cases/TVseries.png</value>

but the collection case is still visible for tvshows and seasons, why ?

Ideas?

Thanx ...