$ git clone -n https://gitee.com/src-opencloudos-rpms/fetchmail.git /var/lib/mock/dist-oc9-build-41145-14591/root/chroot_tmpdir/scmroot/fetchmail
Cloning into '/var/lib/mock/dist-oc9-build-41145-14591/root/chroot_tmpdir/scmroot/fetchmail'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/fetchmail
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 670c46f import fetchmail-6.4.34-3.tl4