$ git clone -n https://src.fedoraproject.org/rpms/shim-unsigned-aarch64.git /var/lib/mock/f42-build-3356302-45027/root/chroot_tmpdir/scmroot/shim-unsigned-aarch64
Cloning into '/var/lib/mock/f42-build-3356302-45027/root/chroot_tmpdir/scmroot/shim-unsigned-aarch64'...
$ git fetch origin 67c1d520f9a8080f6b689714099f813f23154c8f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/shim-unsigned-aarch64
 * [new ref]         67c1d520f9a8080f6b689714099f813f23154c8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67c1d52 Migrate to SPDX license