$ git clone -n https://gitee.com/mgb01105731/docker_5.git /var/lib/mock/dist-an23-build-464491-73881/root/chroot_tmpdir/scmroot/docker_5
Cloning into '/var/lib/mock/dist-an23-build-464491-73881/root/chroot_tmpdir/scmroot/docker_5'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/docker_5
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2163619 init moby