I think the problem appeared from the moment I foolishly tried to reorder galleries in single folder and touched that My Fap -> My Content -> Gallery Listing...
it seems to me you won't see it if you just upload new galleries, never touching that darn widget - which is why it seems contained to limited number of users.
Biggest problem is that once you had that issue, it screws up the gallery order each time you upload something, be it entire new gallery or just a single picture to already existing gallery. Though I tried (several times over and over again) to restore reverse chronological order (newest at the top) it won't work like it used to before.
Why there is no complaint storm from all the users? Perhaps only those that used Gallery Listing thingie are affected. A few guesses why:
as it was:
- galleries were by default listed newest to oldest from top to bottom
- if you added picture to an existing gallery this would not move the affected gallery to the top of the list
- did not use that feature in old interface, but somewhere was mentioned there was "frontpage" flag that could force the flagged gallery / galleries to the top of the list
therefore we can assume gallery creation timestamp was used for gallery sorting (and also that "frontpage" flag).
Now we have that flawed possibility to gain control of entire gallery order, not a minor change...
as it is:
- relation of gallery name to gallery ID to its creation timestamp (as it was, old code handles it)
- additional user-defined position index field which is either:
- not defined - if you never tried Gallery listing tab and old code is handling it
- something else - set throuh Gallery Listing widget which sets the user-defined order, and new buggy code handles it
if that holds true, and user never did try to reorder the galleries, there is no problem.
So, adding an option to restore chronological order (that would actually clear the user-defined index position) could be a quick workaround; should take less time to implement than debugging the new code and will give us what we want most of the time reverting to old way of listing the galleries.