$ git clone -n https://src.fedoraproject.org/rpms/virt-v2v.git /var/lib/mock/f39-build-1893948-42811/root/chroot_tmpdir/scmroot/virt-v2v
Cloning into '/var/lib/mock/f39-build-1893948-42811/root/chroot_tmpdir/scmroot/virt-v2v'...
$ git fetch origin 06731df1314cced9968cee060a9164b86b23b0f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/virt-v2v
 * [new ref]         06731df1314cced9968cee060a9164b86b23b0f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06731df New development branch version 2.3.6