The expectation is that the patch will be applied to HEAD, so it should apply to HEAD. If not, the custom is to ask the author for a rebase.
(I've taken to running a cronjob that tells me when patches I've posted no longer apply, so I can rebase and repost ASAP.)
pgsql-hackers by date:
Соглашаюсь с условиями обработки персональных данных