Search for NuGet shows non-cached packages despite the fact Tree View doesn't

In NEXUS-16009, we changed the behavior of Tree View/Browse such that non-cached packages would not be shown. It was noticed that the non-cached packages still show in Search creating an inconsistency and confusion in our UI.

Reproduce steps:

• Install nunit (for example) via NuGet (I used Group)
• Via Browse, you'll see the one "nunit" that was installed
• Via Search, you'll see 30 or so "nunit" packages (all available versions). Digging into a non installed version shows it is not cached. (see attached)