$ git clone -n https://gitee.com/opencloudos-stream/pcm.git /home/lib/mock/dist-ocs23-build-243407-22797/root/chroot_tmpdir/scmroot/pcm
Cloning into '/home/lib/mock/dist-ocs23-build-243407-22797/root/chroot_tmpdir/scmroot/pcm'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/pcm
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3495703 Rebuilt for loongarch release