https://bugs.kde.org/show_bug.cgi?id=420661

            Bug ID: 420661
           Summary: Wishlist: option to clear/delete specific date field
                    in a picture selection
           Product: digikam
           Version: 7.0.0
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: Metadata-TimeAdjust
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Created attachment 127922
  --> https://bugs.kde.org/attachment.cgi?id=127922&action=edit
Remove timestamp proposal

SUMMARY
I miss an option to clear a specific date field from a picture. You can do what
using the metadata editor, one by one, but it is quite tedious if you need to
do that to a whole folder.

For instance, let's say you scan a picture album, and the scanner software
places a date in the "XMP Creation date". However, you prefer to use the "Exif
original date and time field" for dating your pictures. If the two fields have
different values, it can led to conflicts (e.g. not using the indended date for
sorting). There should be an easy way to delete the "XMP Creation date" field
in a whole picture selection. Using the "Adjust time and date" tool, you can
modify those dates (so they match), but not delete them.

I currently use an exiv2 command to achieve this. For instance, to delete all
XMP dates in a picture folder I run this: 

exiv2 -v -M"del Xmp.xmp.ModifyDate" -M"del Xmp.xmp.CreateDate" -M"del
Xmp.xmp.MetadataDate" -M"del Xmp.exif.DateTimeOriginal" -M"del
Xmp.photoshop.DateCreated" -M"del Xmp.tiff.DateTime" -M"del
Xmp.video.DateTimeOriginal" -M"del Xmp.video.DateUTC" -M"del
Xmp.video.ModificationDate"  *.jpg

But this is just a workaround. It would be great if it could be done from
within the interface. Either in the "Adjust time and date" tool, or in the
"Metadata editor". I have attached a mockup with a possible solution.

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