$ git clone -n https://gitee.com/opencloudos-stream/prelude-manager.git /var/lib/mock/dist-oc9-epol-build-95036-59590/root/chroot_tmpdir/scmroot/prelude-manager
Cloning into '/var/lib/mock/dist-oc9-epol-build-95036-59590/root/chroot_tmpdir/scmroot/prelude-manager'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/prelude-manager
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 62af700 update