$ git clone -n https://gitee.com/src-opencloudos-rpms/gcc.git /var/lib/mock/dist-oc9-build-235806-82198/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-oc9-build-235806-82198/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin 9babed323b1bd1882d88212538879d5b578f1519:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gcc
 * [new ref]         9babed323b1bd1882d88212538879d5b578f1519 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9babed3 import gcc-12.3.1.8-1.tl4