https://bugs.kde.org/show_bug.cgi?id=506070

            Bug ID: 506070
           Summary: Incorrect sorting order in Gwenview
    Classification: Applications
           Product: gwenview
      Version First unspecified
       Reported In:
          Platform: unspecified
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: gwenview-bugs-n...@kde.org
          Reporter: ctbmlog...@bk.ru
  Target Milestone: ---

Created attachment 182574
  --> https://bugs.kde.org/attachment.cgi?id=182574&action=edit
The difference between sort order in Dolphin and Gwenview

SUMMARY
I have a folder with images sorted in Dolphin by the time of when the contents
were created/modified. In Dolphin the sorting order appears correctly. Gwenview
correctly follows this property of the folder and sorts images by the same
order, except certain images which always get misplaced. 
Investigating the issue I found that the affected images come with attached
EXIF and XMP metadata, which lists a different time of change/creation than in
the system and Gwenview apparently prioritizes those extra metadata entries
instead of the system ones. 
This behaviour is unexpected and unwanted, because it differs from the
Dolphin's sorting order, which uses the system's change/creation timestamps. It
also contradicts user expectations: the time of creation/change of the file is
now, not some invisible entry in metadata.

STEPS TO REPRODUCE
1. Get a folder with images that contain images without EXIF/XMP metadata
(likely any images), and sort it in Dolphin by modified/created date.
2. Download the picture from https://www.artstation.com/artwork/qnqQn and put
it in the same folder with images. Its modified/created property will be set to
now and it should appear last.
3. Open it in the Gwenview and see that the downloaded picture's sorting order
is not last, but rather it is sorted as if its modified/created property was
2017 (assuming that other images in the test folder are newer than 2017).

OBSERVED RESULT
The picture in Gwenview is sorted out of order (by creation/modified date) and
is placed as if its modified/created property was 2017.

EXPECTED RESULT
The picture in Gwenview should be sorted in the same way as in Dolphin.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: ROSA Fresh 13, also checked on AltLinux Workstation 11 K
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.8.3

ADDITIONAL INFORMATION
Attached the screenshot

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