@juliaweist as it turns out, the setting is already applied (verified it in the installation profile). The problem persists: The search field finds terms from other lists. We have defined several UI Elements for related Vocabulary Terms, each restricted to a specific list. The hierarchy browser only shows terms from that list, but the search field offers terms from all lists which are defined as vocabulary lists.
@ca-ubos you're right---I see the search issue you are referencing. Could you make a JIRA for this please? Thanks! clangers.collectiveaccess.org/jira