$ git clone -n https://src.fedoraproject.org/rpms/alot.git /var/lib/mock/f40-build-2239793-53623/root/chroot_tmpdir/scmroot/alot
Cloning into '/var/lib/mock/f40-build-2239793-53623/root/chroot_tmpdir/scmroot/alot'...
$ git fetch origin 2305238a072e5ee9152d14474695044b08a1eda6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/alot
 * [new ref]         2305238a072e5ee9152d14474695044b08a1eda6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2305238 Merge #4 `update to 0.10`