lower(A𐐀) = a𐐨 (should be a𐐨)

upper(a𐐨) = A𐐀 (should be A𐐀)

lower(ΚΟΣΜΟΣ) = κοσμος (should be κοσμος)

upper(ß) = SS (should be SS)

upper(ʼn) = ʼN (should be ʼN)

upper(ǰ) = J̌ (should be J̌)

upper(ffi) = FFI (should be FFI)

lower(IJ) = ij (should be ij)