Put a LibreOffice document on a Samba share.
1. Change the file in LibreOffice and save the file. The file is automatically re-uploaded to the server after save, just like one would expect it to.
2. Change the file in LibreOffice, but before saving it, delete or rename the file on the Samba share.
3. Observe that KIO notices and alerts you:{F6250885} {nav Save Nevertheless} saves the file anyway, and {nav Save Somewhere Else} displays a KDE file picker at the original location that allows you to save it elsewhere. Both work as expected.
Put a very large GIMP document on a Samba share.
1. Open the file, edit it, and save it.
2. Wait for the file to finish saving, and then *immediately* edit it and save again (i.e. while the first save is still uploading)
3. Close and open the document again
3. Observe that the second set of edits were saved to the file on the Samba share