[digikam] [Bug 380876] New: Tags in Digikam DB maintained after being removed from file and file re-scanned

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https://bugs.kde.org/show_bug.cgi?id=380876

            Bug ID: 380876
           Summary: Tags in Digikam DB maintained after being removed from
                    file and file re-scanned
           Product: digikam
           Version: 5.6.0
          Platform: MS Windows
                OS: MS Windows
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Tags
          Assignee: [hidden email]
          Reporter: [hidden email]
  Target Milestone: ---

Alright another tag issue here. Looks like bug 352711, but that one is outdated
and I got some details here.

1. Assign EXIF XPKeywords tag to image using Windows Explorer (or possibly
other software).
2. Add image to Digikam.
3. Remove EXIF XPKeywords from image using Windows Explorer. (Note: Digikam
can't edit/remove EXIF XPKeywords tags anyways.)
4. Use any re(read) metadata functionality in Digikam to re(read) tags.
5. The removed EXIF XPKeywords tag is still being displayed by Digikam.

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Maik Qualmann <[hidden email]> changed:

           What    |Removed                     |Added
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                 CC|                            |[hidden email]

--- Comment #1 from Maik Qualmann <[hidden email]> ---
The problem is that Exif.Image.XPKeywords in Exiv2 is a read-only tag. We can
not change or clear this tag at the moment.

Maik

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--- Comment #2 from Sebas <[hidden email]> ---
Yes that's not the problem in this bug. The problem is that rescanning a
tagless file still keeps Digikam displaying the removed tags, so Digikam must
be loading them from database.

Please read description again.

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--- Comment #3 from Maik Qualmann <[hidden email]> ---
I understand the problem. Yes, if a tag is no longer present, it is not deleted
from the database. There are users who only store their metadata in the
database. The database would be empty if the metadata was re-read from the
images. We need a new option in the settings. Let's see if I can still make it
into the 5.6.0 release.

Maik

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