People Directory: Filtering for terms with umlauts in standard elements does not work after adjusting indexing language
Problem
Scenario:
User A has a term with an umlaut in a standard Confluence profile element
example: term "Bürogestaltung" in the field Department
In the People Directory, the field and term are used for filtering
example: "Department" as filter, "Bürogestaltung" as value
User A should be contained in the search results, but is not
Cause
Most likely, the Confluence indexing language was changed without restarting Confluence.
Solution
Restarting Confluence should fix the issue (at any time after the language was changed during indexing).