pkg upgrade with pkg-devel pkg-2.2.99.2

From: Graham Perrin <grahamperrin_at_gmail.com>
Date: Sun, 07 Sep 2025 06:35:42 UTC 
On 07/09/2025 05:11, Mark Millard wrote:
> … a draft of pkg 2.3.0 had an Experimental Run and passed. …

I built and installed pkg-devel, marked pkg as vital, then tested:

pkg upgrade -fqUy

Success, however it's not a particularly meaningful result.

As expected: regardless of the mark, --force results in a downgrade from 
2.2.99.2 to pkg-2.2.2 from FreeBSD-ports.