$ git clone -n https://src.fedoraproject.org/rpms/rabbitsign.git /var/lib/mock/f39-build-1501186-34825/root/chroot_tmpdir/scmroot/rabbitsign
Cloning into '/var/lib/mock/f39-build-1501186-34825/root/chroot_tmpdir/scmroot/rabbitsign'...
$ git fetch origin 31758a52a1003c24f045b18836ca924fcc1be7b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rabbitsign
 * [new ref]         31758a52a1003c24f045b18836ca924fcc1be7b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31758a5 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild