https://bugs.kde.org/show_bug.cgi?id=448082
Bug ID: 448082
Summary: Thumbnail maintenance always clears faces thumbnails
Product: digikam
Version: 7.4.0
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Maintenance-Engine
Assignee: digikam-bugs-n...@kde.org
Reporter: testvon...@web.de
Target Milestone: ---
SUMMARY
***
When using the maintenance tool to clean the Thumbnail database, thumbnails of
tagged faces disappear and need to be rebuild. The size of the database
"thumbnails-digikam.db" stays the same throughout the process, even when the
thumbnails are rebuild afterwards.
***
STEPS TO REPRODUCE
1. Run Tools -> Maintenance -> Perform database cleaning with options:
"Also clean up the thumbnail database" & "Also shrink all databases when
possible" (the faces option seemed to make no difference, if checked or not)
2. Wait until task is finished
3. Check if thumbnails of faces in "People" tab are visible
OBSERVED RESULT
After running the maintenance, all face thumbnails in the People section
(lefthand side of digikam) are gone and digikam starts rebuilding them again.
The size of the database meanwhile stays the same.
EXPECTED RESULT
Only orphaned thumbnails (from images that do not exist or similar) should be
removed.
If People's thumbnails are removed, the database size should decrease.
SOFTWARE/OS VERSIONS
Windows 10 Pro, 21H2, 19044.1415
ADDITIONAL INFORMATION
Database cleaning should not remove thumbnails from images/regions which are
still in use, right? For the images (under albums), this works as intended, but
not for the People tab.
Are the thumbnails for the People section even stored in this file or somewhere
else? Or am I missing something? Is this behaviour intentional?
After this maintenance, all face thumbnails are rebuilt, when I select the
People tab which takes quite a time (images on not-very-fast etwork drive).
I don't know if another bug I experienced (or some information I provided
there) might be related in any form:
https://bugs.kde.org/show_bug.cgi?id=448079
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