$ git clone -n https://gitee.com/src-opencloudos-rpms/cyrus-imapd.git /var/lib/mock/dist-oc9-build-72490-47814/root/chroot_tmpdir/scmroot/cyrus-imapd
Cloning into '/var/lib/mock/dist-oc9-build-72490-47814/root/chroot_tmpdir/scmroot/cyrus-imapd'...
$ git fetch origin 25a1503c69937825d922435b95d3dfabad1d37e8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/cyrus-imapd
 * [new ref]         25a1503c69937825d922435b95d3dfabad1d37e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25a1503 import cyrus-imapd-3.4.4-8.tl4