$ git clone -n https://src.fedoraproject.org/rpms/mmc.git /var/lib/mock/f41-build-side-1-2965576-35794/root/chroot_tmpdir/scmroot/mmc
Cloning into '/var/lib/mock/f41-build-side-1-2965576-35794/root/chroot_tmpdir/scmroot/mmc'...
$ git fetch origin dc034e7c6b8f4662f4adfcc1af799194c0fb0812:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mmc
 * [new ref]         dc034e7c6b8f4662f4adfcc1af799194c0fb0812 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc034e7 convert GPLv3+ license to SPDX