$ git clone -n https://gitee.com/opencloudos-stream/gcc.git /var/lib/mock/dist-ocs23-build-15340-1041/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-ocs23-build-15340-1041/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gcc
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a9943e !1 updated version to 12.3.0 Merge pull request !1 from jeremiazhao/master