$ git clone -n https://src.fedoraproject.org/rpms/trademgen.git /var/lib/mock/f41-build-side-1-2771449-32231/root/chroot_tmpdir/scmroot/trademgen
Cloning into '/var/lib/mock/f41-build-side-1-2771449-32231/root/chroot_tmpdir/scmroot/trademgen'...
$ git fetch origin 2785bcb04945d412642a06df99d8971b52e0406e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trademgen
 * [new ref]         2785bcb04945d412642a06df99d8971b52e0406e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2785bcb Upgraded to 1.00.11