https://bugs.kde.org/show_bug.cgi?id=495646

--- Comment #10 from Maik Qualmann <metzping...@gmail.com> ---
The metadata set is always rewritten. Even if you "only" change a tag directly
with ExifTool. There is also an answer to this in the ExifTool FAQ. ExifTool /
Exiv2 always rewrites all metadata, there is no other way, pointers to the next
metadata block must be updated, etc.
At digiKam there is currently a special feature, we work with ExifTool via an
EXV container (metadata without image data).

This is how it works if you have activated reading and writing with ExifTool:

ExifTool -> EXV -> processed with Exiv2 -> EXV -> ExifTool

In your image, some program has written the ICC profile into an EXIF ​​tag.
This is bad behavior for ExifTool and is generally automatically "repaired"
when ExifTool changes metadata.
The profile is written to the correct location.
You won't notice this because digiKam basically supports both ICC metadata
locations.

How does digiKam-8.5.0 behave with your image?
Writing with Exiv2->ICC profile remains in the EXIF ​​metadata.
Writing with ExifTool->EXIF tag is removed and profile in the correct location.

Maik

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