darktable has add a new feature to auto apply the preset of a module. I was trying to make a preset for color balance RGB to make my pictures look like Nikon z50’s sooc so I do these on the settings of my preset.
If I look at the metadata of a Nikon Z 50 RAW (using exiftool) I see that the model should be Z 50 and not Z50 as shown in your screen capture.
This info can also be found in (and copied from) the image information module in darktable.
Oh it do works! thank you very much