$ git clone -n https://gitee.com/gcdota930915/gnutls.git /var/lib/mock/dist-an23-build-375417-71705/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-an23-build-375417-71705/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin de2959cc89a171e8db299ee98caa6be549dd7120:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/gnutls
 * [new ref]         de2959cc89a171e8db299ee98caa6be549dd7120 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de2959c update gnutls.spec.