$ git clone -n https://gitee.com/src-opencloudos-rpms/mutter /var/lib/mock/dist-oc8-build-58020-15862/root/chroot_tmpdir/scmroot/mutter
Cloning into '/var/lib/mock/dist-oc8-build-58020-15862/root/chroot_tmpdir/scmroot/mutter'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mutter
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8d9c06 import mutter-3.32.2-71.tl3.1