Steps to reproduce:
1. Add a setuid program to your config:
(setuid-programs (cons*
(file-append hello "/bin/hello")
%setuid-programs))
2. guix system reconfigure
3. Observe that /run/setuid-programs/hello got created
4. Undo the configuration change
5. guix system reconfigure
6. Observe that /run/setuid-programs/hello no longer exists
7. guix system roll-back
Expected behavior:
/run/setuid-programs/hello appears again
Actual behavior:
/run/setuid-programs/hello still doesn't exist
Similarly, when roll-back is supposed to remove a file, it doesn't.
Previously mentioned in https://debbugs.gnu.org/38800.
Regards,
Jakub Kądziołka
