$ git clone -n https://src.fedoraproject.org/rpms/shim.git /var/lib/mock/f41-build-side-1-2953142-35536/root/chroot_tmpdir/scmroot/shim
Cloning into '/var/lib/mock/f41-build-side-1-2953142-35536/root/chroot_tmpdir/scmroot/shim'...
$ git fetch origin f9254439606d7ecea9c4f96d981cbe838a462912:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/shim
 * [new ref]         f9254439606d7ecea9c4f96d981cbe838a462912 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f925443 Migrate to SPDX license