Am 24. November 2019 18:30:43 MEZ schrieb Wolfgang Mueller <wm@ariannuccia.de>:

On Sun, 24 Nov 2019 17:35:05 +0100, Andrei Borzenkov wrote:>

 24.11.2019 1:01, Wolfgang Mueller wrote‚:

 Invoking 'zypper patch' yielded--among others--the following response:

Retrieving repository 'Untested Updates' metadata----------------[\]
The gpg key signing file 'repomd.xml' will expire in 14 days.
Repository: Untested Updates
Key Name: openSUSE:Maintenance OBS Project
<openSUSE:Maintenance@build.opensuse.org>
Key Fingerprint: 7C097045 B0D351D3 69AC453A 598D0E63 B3FD7E48
Key Created: Fri Sep 29 19:30:59 2017
Key Expires: Sun Dec 8 18:30:59 2019 (expires in 14 days)
Rpm Name: gpg-pubkey-b3fd7e48-59ce8353
Retrieving repository 'Untested Updates' metadata.............[done]

So this is obs://openSUSE:Maintenance:Test:Leap_15.1 as explained later.

Is there any need to renew or prolongate the file repomd.xml?

You do not usually need this repository unless you are actively testing
proposed updates. Are you?

Or is it--as I suppose--dispensable?

Not sure I understand the question but there is nothing in this
repository that won't be available later as official update. And if you
are using this repository you should be prepared to also fix potential
breakage.

If I have understood you correctly, the repository in question is 
not only superfluous but also dangerous. So, I will not wait for its 
expiration, but remove it immediately.

Thanks a lot, Andrej. Best regards,
Wolfgang

Still error is not nice, so adding mmeissner in case he is not yet aware :)

Though I have no idea who Meissner is, I have send him a copy, too.