$ git clone -n https://src.fedoraproject.org/rpms/elixir.git /var/lib/mock/f40-build-2291814-56076/root/chroot_tmpdir/scmroot/elixir
Cloning into '/var/lib/mock/f40-build-2291814-56076/root/chroot_tmpdir/scmroot/elixir'...
$ git fetch origin 0a179d3d098c6a8b922a423dce3e87e4790a1b1f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/elixir
 * [new ref]         0a179d3d098c6a8b922a423dce3e87e4790a1b1f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a179d3 One more failing test on i686 disabled