Reduced EXIF in renamed export images?

Software darktable
1

Is this expected behavior?

(darktable 3.8.0 on Windows 11)

I have a Canon CR3 file: IMG_3382.CR3
I export a TIFF from dt: IMG_3382.tif

I then export another TIFF of the same CR3 into the same directory: IMG_3382_01.tif
dt renames it so as not to overwrite the existing TIFF. Here are all the files.

2022-02-10  17:22        28,048,074 IMG_3382.CR3
2022-02-10  21:31       123,926,180 IMG_3382.tif
2022-02-10  21:35       123,894,454 IMG_3382_01.tif

But IMG_3382_01.tif has a fraction of the EXIF compared to the original (note the size difference above):

exiftool IMG_3382.tif | wc -l
295

exiftool IMG_3382_01.tif | wc -l
64

For example:

exiftool IMG_3382.tif | findstr "Aperture"
Aperture Value                  : 12.9
Max Aperture                    : 3.4
Min Aperture                    : 25
Target Aperture                 : 13
Aperture                        : 13.0

exiftool IMG_3382_01.tif | findstr "Aperture"`

(nothing)

If I rename or delete the original TIFF and export again, it has full EXIF. Expected? Bug?

Thanks.

2

Sounds like a bug to me.

3

Bug report filed: https://github.com/darktable-org/darktable/issues/11102

Thanks.