$ git clone -n https://src.fedoraproject.org/rpms/jcuber.git /var/lib/mock/f39-build-1497480-34616/root/chroot_tmpdir/scmroot/jcuber
Cloning into '/var/lib/mock/f39-build-1497480-34616/root/chroot_tmpdir/scmroot/jcuber'...
$ git fetch origin fad613495afd6cd7477d386a3de4790df97bb515:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jcuber
 * [new ref]         fad613495afd6cd7477d386a3de4790df97bb515 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fad6134 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild