As noted on comment #132, Chrome on Android phone encountered the same issue. So it would not be "FreeBSD" aware
I intended to refer to something else, but I could have elaborated more/better.
First, I'm assuming this cgit misbehaviour isn't confined to just
ports-mgmt/pkg/Makefile
but occurs with other files/commits as well (not related to pkg).
With 'FreeBSD' I was thinking about the FreeBSD organisation (not the 'FreeBSD OS' you happen to run). No doubt someone in the FreeBSD organisation is running or managing this (Japanese-region oriented) cgit server or has the means to change its settings. Good to know that other OS-es experience the same problem, that solidifies the idea that this is indeed a cgit (region bound) problem. I do not know exactly where such an issue should be reported most suitably though.
Not fully matches, but possibly
PR 284428 could be related.
It's for pkgbase, but stating pkg archive date could make pkg confused.
How do you think?
I lack (detailed enough) knowledge about pkgbase and how it relates to the 'ordinary' pkg(8); I don't have any experience with it and I haven't found any detailed description about it as to its (full) intended functionality (maybe there's some detailed description document that I have missed*). As to the specifc
PR 284428: I don't see anything related to FreeBSD 14:amd64; it's all -CURRENT (15) as indicated by the PR's submitter. It doesn't strike me as related.
I agree that one better/best submits a detailed PR to indicate a problem. However, if you can (reproducibly) show that certain behaviour related to pkg 2.0.5 occurs where you (quite reasonably would) expect, or really need, other behaviour, I suggest you file a PR, or at least post it to the pkg mailing list. In case a clear error is indicated, IMO, you should file a PR. You have the knowledge and setup to run further tests and acquire more detailed debug info if so required upon request.
There doesn't seem to be a great influx of recently reported PRs related to pkg 2.0.x. Any new PR described and detailed appropriatedly should be welcome, IMHO.
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* AFAIK, pkgbase is still considered to be experimental, however applicable/stable it may be for FreeBSD users.