FreeBSD: How do I install port which doesn't show in searches?

I'd like to install version 6 of unifi network controller in a jail on my FreeNAS server. I can see that a net-mgmt/unifi6 port exists in bugs.freebsd.org: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249466 . However I can't find it by searching any of the following places: - /usr/ports directory - pkg search command - https://www.freebsd.org/ports/searching.html web page I'm guessing this is in a pre-release state. Is it possible to install? If so, how? Thanks!