$ git clone -n https://src.fedoraproject.org/rpms/palapeli.git /var/lib/mock/f42-build-side-1-3554962-46650/root/chroot_tmpdir/scmroot/palapeli
Cloning into '/var/lib/mock/f42-build-side-1-3554962-46650/root/chroot_tmpdir/scmroot/palapeli'...
$ git fetch origin 20b6596e94d39a54876eef6798d8b9c662ad0951:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/palapeli
 * [new ref]         20b6596e94d39a54876eef6798d8b9c662ad0951 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20b6596 25.04.2