$ git clone -n https://gitee.com/opencloudos-stream/gcc.git /var/lib/mock/dist-ocs23-build-107965-6346/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-ocs23-build-107965-6346/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gcc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f90c533 !5 update to tgcc-12.3.1 Merge pull request !5 from renaliang/update_to_tgcc