The port is working but not respecting the standard way of using git commits.
I did a similar mistake with math/wxmaxima some days ago: https://docs.freebsd.org/cgi/getmsg.cgi?fetch=2811607+0+archive/2020/svn-ports-head/20200315.svn-ports-head . The issue is present in misc/xiphos and this patch should fix it. (Tests are running.)
(The wxmaxima port was fixed differently: I updated it to a new version.)
My point was in reference to git id 9e57333 (before) versus git id (9e573336) after, though in hindsight I realized that may be in reference to the same id, just one additional significant digit.