$ git clone -n https://gitee.com/opencloudos-stream/paper.git /var/lib/mock/dist-ocs23-build-238350-21283/root/chroot_tmpdir/scmroot/paper
Cloning into '/var/lib/mock/dist-ocs23-build-238350-21283/root/chroot_tmpdir/scmroot/paper'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/paper
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0bd84b3 Rebuilt for loongarch release