Editing nullfs file

From: Alexander Shursha <kekek2_at_ya.ru>
Date: Tue, 18 Jul 2023 11:20:29 UTC
<div>Hi!</div><div><div>I do the following:</div><div> </div><div><div>mkdir -p /mnt</div><div><div>touch /mnt/foo</div><div><div>mount -t nullfs /COPYRIGHT /mnt/foo</div><div><div>sed -i 's/Berkeley//' /COPYRIGHT</div><div><div>diff /COPYRIGHT /mnt/foo</div><div> </div><div><div>The files are different. Is this normal behavior or a bug ?</div><div> </div></div></div></div></div></div></div></div>