see also https://reviews.freebsd.org/D40561
<https://docs.freebsd.org/en/books/handbook/ports/#ports-using-git-method>
I've committed the discussed patch from D40561 here: https://cgit.freebsd.org/doc/commit/?id=cbe1572983c139a36fb0357e16df0dd01e1318ad PR closed, thanks for submitting it.