$ git clone -n https://gitee.com/src-opencloudos-rpms/gnutls.git /var/lib/mock/dist-oc8-build-66471-16711/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-oc8-build-66471-16711/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin a9e6ea54b9a28907cf28981fc86a11998afd0987:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gnutls
 * [new ref]         a9e6ea54b9a28907cf28981fc86a11998afd0987 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9e6ea5 import gnutls-3.6.16-8.tl3