$ git clone -n https://gitee.com/alpha-wang/elixir_1.git /var/lib/mock/dist-an8-epao-build-421617-72909/root/chroot_tmpdir/scmroot/elixir_1
Cloning into '/var/lib/mock/dist-an8-epao-build-421617-72909/root/chroot_tmpdir/scmroot/elixir_1'...
$ git fetch origin cf90a889335535df9e6d25508d4e17ce2bd0b1f4:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/elixir_1
 * [new ref]         cf90a889335535df9e6d25508d4e17ce2bd0b1f4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf90a88 init to 1.9.2