$ git clone -n https://gitee.com/fundawang/gnutls.git /var/lib/mock/dist-an23-build-347934-70386/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-an23-build-347934-70386/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin d30d886fa9197ec6b353c01d2c3f69b676d91943:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/gnutls
 * [new ref]         d30d886fa9197ec6b353c01d2c3f69b676d91943 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d30d886 3.8.3