$ git clone -n https://gitee.com/src-opencloudos-rpms/gcc-toolset-12 /var/lib/mock/dist-oc8-build-56997-15199/root/chroot_tmpdir/scmroot/gcc-toolset-12
Cloning into '/var/lib/mock/dist-oc8-build-56997-15199/root/chroot_tmpdir/scmroot/gcc-toolset-12'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gcc-toolset-12
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 601cc33 import gcc-toolset-12-12.0-6.tl3