$ git clone -n https://src.fedoraproject.org/rpms/vim-omnicppcomplete.git /var/lib/mock/f45-build-38060-719/root/chroot_tmpdir/scmroot/vim-omnicppcomplete
Cloning into '/var/lib/mock/f45-build-38060-719/root/chroot_tmpdir/scmroot/vim-omnicppcomplete'...
$ git fetch origin 0c85e4df4768f449ea91d8ed0d6e4dad7c041270:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vim-omnicppcomplete
 * [new ref]         0c85e4df4768f449ea91d8ed0d6e4dad7c041270 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c85e4d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild