$ git clone -n https://src.fedoraproject.org/rpms/perl-Compress-Stream-Zstd.git /var/lib/mock/f39-build-1434927-31961/root/chroot_tmpdir/scmroot/perl-Compress-Stream-Zstd
Cloning into '/var/lib/mock/f39-build-1434927-31961/root/chroot_tmpdir/scmroot/perl-Compress-Stream-Zstd'...
$ git fetch origin ba9521bb74e5139a03256637ff4184793ad0e0fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Compress-Stream-Zstd
 * [new ref]         ba9521bb74e5139a03256637ff4184793ad0e0fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba9521b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild