$ git clone -n https://git.cclinux.org/stage/rpms/shim-unsigned-aarch64.git /mnt/compose/mock/dist-circle8-build-117163-78778/root/chroot_tmpdir/scmroot/shim-unsigned-aarch64
Cloning into '/mnt/compose/mock/dist-circle8-build-117163-78778/root/chroot_tmpdir/scmroot/shim-unsigned-aarch64'...
$ git fetch origin 272e633e7ff48afe9170be86a04e139cee95ab1a:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/shim-unsigned-aarch64
 * [new ref]         272e633e7ff48afe9170be86a04e139cee95ab1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 272e633 import shim-unsigned-aarch64-15.8-2.el8