$ git clone -n https://src.fedoraproject.org/rpms/rpmbuild-order.git /var/lib/mock/f38-build-side-42-init-devel-999726-29246/root/chroot_tmpdir/scmroot/rpmbuild-order
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-999726-29246/root/chroot_tmpdir/scmroot/rpmbuild-order'...
$ git fetch origin 1ec03b712dad9cc5af09fbc8b097b50c6ba76ef5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpmbuild-order
 * [new ref]         1ec03b712dad9cc5af09fbc8b097b50c6ba76ef5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ec03b7 refresh to cabal-rpm-2.1.0 with SPDX migration