$ git clone -n https://src.fedoraproject.org/rpms/virt-v2v.git /var/lib/mock/f40-build-768261-125260/root/chroot_tmpdir/scmroot/virt-v2v
Cloning into '/var/lib/mock/f40-build-768261-125260/root/chroot_tmpdir/scmroot/virt-v2v'...
$ git fetch origin 354d96158433508e6c51d7a907c90ef55b51d293:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/virt-v2v
 * [new ref]         354d96158433508e6c51d7a907c90ef55b51d293 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 354d961 New development branch version 2.3.8