$ git clone -n https://gitee.com/opencloudos-stream/lorax.git /var/lib/mock/dist-ocs23-build-173548-10899/root/chroot_tmpdir/scmroot/lorax
Cloning into '/var/lib/mock/dist-ocs23-build-173548-10899/root/chroot_tmpdir/scmroot/lorax'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/lorax
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba649c0 !6 Make boot.iso for loongarch64 Merge pull request !6 from dpd/master