$ git clone -n https://gitee.com/src-opencloudos-rpms/mutter.git /var/lib/mock/dist-oc9-build-129248-77742/root/chroot_tmpdir/scmroot/mutter
Cloning into '/var/lib/mock/dist-oc9-build-129248-77742/root/chroot_tmpdir/scmroot/mutter'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mutter
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2de6452 import mutter-44.3-5.tl4