$ git clone -n https://gitee.com/src-opencloudos-rpms/cyrus-imapd.git /var/lib/mock/dist-oc9-build-123016-72637/root/chroot_tmpdir/scmroot/cyrus-imapd
Cloning into '/var/lib/mock/dist-oc9-build-123016-72637/root/chroot_tmpdir/scmroot/cyrus-imapd'...
$ git fetch origin 00f32d6f947b4488ebcac4f6c45669938306bb1e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/cyrus-imapd
 * [new ref]         00f32d6f947b4488ebcac4f6c45669938306bb1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00f32d6 import cyrus-imapd-3.4.8-4.tl4