Comment # 1 on bug 1203715 from Lubos Kocman

Installation seem to pass (after bypassing post-build checks)

lubos@localhost:~/Downloads> sudo zypper in
openSUSE-repos-Tumbleweed-20220924.5761673-2.1.x86_64.rpm 
[sudo] password for root: 
Loading repository data...
Reading installed packages...
Resolving package dependencies...

The following NEW package is going to be installed:
  openSUSE-repos-Tumbleweed

1 new package to install.
Overall download size: 9.4 KiB. Already cached: 0 B. After the operation,
additional 848.0 B will be used.
Continue? [y/n/v/...? shows all options] (y): y
Retrieving package openSUSE-repos-Tumbleweed-20220924.5761673-2.1.x86_64
                                           (1/1),   9.4 KiB (  848   B
unpacked)
openSUSE-repos-Tumbleweed-20220924.5761673-2.1.x86_64.rpm:
    Header V3 RSA/SHA256 Signature, key ID bdd7528052d16182: NOKEY
    V3 RSA/SHA256 Signature, key ID bdd7528052d16182: NOKEY

warning:
/var/tmp/zypp.NcixoI/zypper/_tmpRPMcache_/%CLI%/openSUSE-repos-Tumbleweed-20220924.5761673-2.1.x86_64.rpm:
Header V3 RSA/SHA256 Signature, key ID 52d16182: NOKEY
Looking for gpg key ID 52D16182 in cache /var/cache/zypp/pubkeys.
Repository Plain RPM files cache does not define additional 'gpgkey=' URLs.
openSUSE-repos-Tumbleweed-20220924.5761673-2.1.x86_64 (Plain RPM files cache):
Signature verification failed [4-Signatures public key is not available]
Abort, retry, ignore? [a/r/i] (a): i

Checking for file conflicts:
.............................................[done]
warning:
/var/cache/zypper/RPMS/openSUSE-repos-Tumbleweed-20220924.5761673-2.1.x86_64.rpm:
Header V3 RSA/SHA256 Signature, key ID 52d16182: NOKEY
Setting new service openSUSEindeterminate indeterminate
Service 'openSUSE' has been successfully added.
(1/1) Installing: openSUSE-repos-Tumbleweed-20220924.5761673-2.1.x86_64 ..[done