$ git clone -n https://gitee.com/src-opencloudos-rpms/gnutls.git /var/lib/mock/dist-oc8-build-236397-82266/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-oc8-build-236397-82266/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin f6c3b5126b99c7d97179df85b809ebf2e574757b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gnutls
 * [new ref]         f6c3b5126b99c7d97179df85b809ebf2e574757b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6c3b51 import gnutls-3.6.16-8.tl3.5