$ git clone -n https://gitee.com/src-opencloudos-rpms/cyrus-imapd.git /var/lib/mock/dist-oc9-build-81535-55315/root/chroot_tmpdir/scmroot/cyrus-imapd
Cloning into '/var/lib/mock/dist-oc9-build-81535-55315/root/chroot_tmpdir/scmroot/cyrus-imapd'...
$ git fetch origin 71606fde8fd120f475a91cd2329c3a851d08071c:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/cyrus-imapd
 * [new ref]         71606fde8fd120f475a91cd2329c3a851d08071c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71606fd import cyrus-imapd-3.4.8-1.tl4