$ git clone -n https://gitee.com/fundawang/gnutls.git /var/lib/mock/dist-an23-build-347930-70386/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-an23-build-347930-70386/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin 15782c17d61e3dc4d847ade796ba01537b354299:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/gnutls
 * [new ref]         15782c17d61e3dc4d847ade796ba01537b354299 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15782c1 3.8.3