Similar to this answer, I would like to know how duplicity behaves if an owner of files / directories does not exist on restore? And what happens if the owner does not exist on backup? By non-existence I refer to the absence of an entry in /etc/passwd.
Background: Docker bind volume mount paths on the host system sometimes only have a UID, but no user name if a user only exists in the container (e.g. as described here under Option 0.
. The question is whether duplicity can just restore UID / GID even if there is no matching /etc/passwd entry.