$ git clone -n https://src.fedoraproject.org/rpms/virt-v2v.git /var/lib/mock/f41-build-855846-167429/root/chroot_tmpdir/scmroot/virt-v2v
Cloning into '/var/lib/mock/f41-build-855846-167429/root/chroot_tmpdir/scmroot/virt-v2v'...
$ git fetch origin 0cc7156fdfd6b900d6c6a468f5eab4730a49fdd3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/virt-v2v
 * [new ref]         0cc7156fdfd6b900d6c6a468f5eab4730a49fdd3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0cc7156 New upstream development version 2.5.10