Does this seem weird to you too?
I know that é is the same letter as É as I speak fluent french but what about this accented "Z"? How can it run through UPPER and fail the case-insensitive equality check?
SELECT CASE WHEN 'ž'='Ž' THEN 'TRUE' ELSE 'FALSE' END
SELECT CASE WHEN 'é'='É' THEN 'TRUE' ELSE 'FALSE' END