First, I call statuses/update.json with “status=ほげ”.
This status indicate UTF-8 sequence E3 81 BB E3 81 92. This is Japanese alphabet.
Second, I call same endpoint quickly with “status=ふが”.
This status indicate UTF-8 sequence E3 81 B5 E3 81 8C.
Second time api request got an error “Status duplicate”.
But, these requests are not same UTF-8 sequence.
Maybe duplicate checking used only text length.
If these request include some Alphabetical character(UTF-8 1byte character),
duplicate check was respond correct.