$ git clone -n https://gitee.com/opencloudos-stream/busybox.git /var/lib/mock/dist-oc9-epol-build-139115-79708/root/chroot_tmpdir/scmroot/busybox
Cloning into '/var/lib/mock/dist-oc9-epol-build-139115-79708/root/chroot_tmpdir/scmroot/busybox'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/busybox
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 741a10c !6 Rebuilt for loongarch64 Merge pull request !6 from brucezhang/master