[FC] unsigned fc.public.key in Tumbleweed

[Felix Miata]

# inxi -S
System:
Host: p5bse Kernel: 6.6.74-1-longterm arch: x86_64 bits: 64
Console: pty pts/1 Distro: openSUSE Tumbleweed 20251230
# cat /etc/zypp/repos.d/FCLunst.repo
[FCLunst]
autorefresh=0
baseurl=http://silk.apana.org.au/rpm-unstable-dev
enabled=1
gpgkey=http://silk.apana.org.au/debian/fc.public.key
keeppackages=1
name=FCLunst
type=rpm-md
# zypper ref
Repository 'Update' is up to date.
Looking for gpg keys in repository FCLunst.
gpgkey=http://silk.apana.org.au/debian/fc.public.key
Warning: File 'repomd.xml' from repository 'FCLunst' is unsigned.

Note: Signing data enables the recipient to verify that no modifications occurred after the data
were signed. Accepting data with no, wrong or unknown signature can lead to a corrupted system
and in extreme cases even to a system compromise.

Note: File 'repomd.xml' is the repositories master index file. It ensures the integrity of the
whole repo.

Warning: We can't verify that no one meddled with this file, so it might not be trustworthy
anymore! You should not continue unless you know it's safe.

File 'repomd.xml' from repository 'FCLunst' is unsigned.
Continue? [yes/no] (no):
#

Can anyone explain to me why TW thinks this key is unsigned, or otherwise
explain how to avoid this error message with every refresh?
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.

Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata