After the latest change (r487789 by zeising), the version of x11-servers/xwayland goes from 1.19.1_10,1 to 1.19.1_1,1. The same issue occurred in September. See commit message of r479663: "Remove portrevision, it's inherited from master. Adding it here made it go backwards."
A commit references this bug: Author: zeising Date: Sun Dec 23 09:57:30 UTC 2018 New revision: 488181 URL: https://svnweb.freebsd.org/changeset/ports/488181 Log: x11-servers/xwayland: Fix portrevision Fix portrevision, it accidentally went backwards when comitting r487789. Bump it to 11 to ensure xwayland is rebuild after the evdev-proto changes. Add a big note about this, so I might remember next time. PR: 222905, 217248, 233787 (original commit), 234240 (fix) Submitted by: Stefan Ehmann (fix) Changes: head/x11-servers/xwayland/Makefile
Fixed, sorry about that and thanks for the report.