$ git clone -n https://src.fedoraproject.org/rpms/neovim.git /var/lib/mock/f40-build-2541580-61877/root/chroot_tmpdir/scmroot/neovim
Cloning into '/var/lib/mock/f40-build-2541580-61877/root/chroot_tmpdir/scmroot/neovim'...
$ git fetch origin 59bf47b3c605c30ef7b0fd733cbc421d339bd0d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/neovim
 * [new ref]         59bf47b3c605c30ef7b0fd733cbc421d339bd0d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 59bf47b Build with luajit on s390x