"Date taken" corruption on metadata change, especially captions

[Charlie Gorichanaz]

Hello,

I've recently found Digikam seems to be corrupting the dates on my photos.
I believe this happened after I ran an update from Arch Linux package
digikam-8.4.0-1 to digikam-8.4.0-2, which was built September 21 and which
I installed more recently than that.

I am in Pacific time and my Linux computer is configured as such, in UTC-7.
My photos are a combination of files from a Pixel phone (with filenames
using the UTC timestamp) and Nikon Z7ii. I haven't figured out exactly what
is happening, but I noticed the files jump around in my album after I add
flags or write captions. This can happen multiple times. It seems like they
jump ahead by 7 or 14 hours upon such metadata changes. If I edit a single
photo's caption multiple times, the file can end up several days after
where it should be in the album. This is driving me crazy, as I am trying
to sort photos chronologically for the purpose of writing journals and
blogs.

For example, here's a photo I edited the caption about 10 or 15 times. You
can see the "camera created date" showing below the thumbnail is 09-05
06:33 despite that it should be 08-29 20:33 local time or 08-30 03:33 UTC.
I see now none of the metadata fields with "date" in the name actually have
that 09-05 date, so I'm not sure where it's coming from.

[image: screenshot_2024-10-23_163148.png]

Is anyone else experiencing something like this?

Note I am unfortunately not 100% sure if this was working correctly for me
on Arch 8.4.0-1. The fact that package exists on my local system makes me
think I was using 8.4.0 successfully before I installed the 8.4.0-2 package
recently, but the changes
<https://gitlab.archlinux.org/archlinux/packaging/packages/digikam/-/commit/b9a9eee00bd55376cac33070d3632e93d61ad443>
there seem so small I am not sure what the problem could be. So there's a
chance I was using 8.3.0 when this was working.

Thank you,
Charlie Gorichanaz

P.S. I will be on a short camping trip for the next few days, so I may not
be able to reply promptly, but I will certainly be back! Thanks.
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