I have to spend ages moving the photos back where they came from, trying really hard not to lose any, and even then the tags are gone. The photos are gone from digikam, I lose what folders they were in, I lose what tags they had, and there's no confirmation.
If I just let go (expecting the move/copy prompt), then it just goes right ahead and moves the pictures out of digikam, which is absolutely awful. I can also drag them to Caja, but then I have to be really careful. I can drag them into another folder of digikam, and that offers me a pop menu - do I want to move or copy? I can also cancel this if I realise it's not what I want to do. I guess that Digikam has copied them into a KDE clipboard and Caja can't find them. But in my file manager Caja there is no "Paste" command available. I select the photos I want, and choose "Edit"->"Copy".
I do not want to change the photos which are in digikam, and I don't want to lose the folder information, tags etc. Then I want to take those photos and make copies of them onto somewhere else outside of digikam's control, like a USB stick or an external drive or even just another folder. I use the timeline view or the tag view to show just a subset of photos, where the photos are scattered across different folders. I have my photos in digikam, separated out into various folders. But maybe there's still someone here who can suggest something. Maybe the problem I'm about to describe just isn't an issue on KDE. This is probably a bit of an unusual combination, but I'm using Digikam on Maté.