$ git clone -n https://gitee.com/opencloudos-stream/orca.git /home/lib/mock/dist-ocs23-loongarch64-build-193019-12945/root/chroot_tmpdir/scmroot/orca
Cloning into '/home/lib/mock/dist-ocs23-loongarch64-build-193019-12945/root/chroot_tmpdir/scmroot/orca'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/orca
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c212683 !3 revert "use python3 instead of python by default." Merge pull request !3 from abushwang/master