$ git clone -n https://src.fedoraproject.org/rpms/warzone2100.git /var/lib/mock/f41-build-side-1-2778992-32451/root/chroot_tmpdir/scmroot/warzone2100
Cloning into '/var/lib/mock/f41-build-side-1-2778992-32451/root/chroot_tmpdir/scmroot/warzone2100'...
$ git fetch origin 087ab02e32a9ec332294da2898dab910535a7aae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/warzone2100
 * [new ref]         087ab02e32a9ec332294da2898dab910535a7aae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 087ab02 convert license to SPDX