$ git clone -n https://gitee.com/opencloudos-stream/gsm.git /var/lib/mock/dist-ocs23-base-build-287401-27943/root/chroot_tmpdir/scmroot/gsm
Cloning into '/var/lib/mock/dist-ocs23-base-build-287401-27943/root/chroot_tmpdir/scmroot/gsm'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gsm
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3d8961 Rebuilt for clarifying the packages requirement in BaseOS and AppStream