$ git clone -n https://gitee.com/opencloudos-stream/flex.git /home/lib/mock/dist-ocs23-loongarch64-build-186205-12828/root/chroot_tmpdir/scmroot/flex
Cloning into '/home/lib/mock/dist-ocs23-loongarch64-build-186205-12828/root/chroot_tmpdir/scmroot/flex'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/flex
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae708cb Rebuilt for OpenCloudOS Stream 23.09