$ git clone -n https://src.fedoraproject.org/rpms/kernel.git /var/lib/mock/f45-build-46461-835/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f45-build-46461-835/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin 178a0acce5e2efa309b71c69e5371a2d6584f700:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kernel
 * [new ref]             178a0acce5e2efa309b71c69e5371a2d6584f700 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 178a0acce kernel-7.2.11-300