$ git clone -n https://gitee.com/src-anolis-os/gnutls.git /var/lib/mock/dist-an23.3-build-448477-73408/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-an23.3-build-448477-73408/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin de2959cc89a171e8db299ee98caa6be549dd7120:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/gnutls
 * [new ref]         de2959cc89a171e8db299ee98caa6be549dd7120 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de2959c update gnutls.spec.