$ git clone -n https://gitee.com/gcdota930915/gnutls.git /var/lib/mock/dist-an23-build-518024-75360/root/chroot_tmpdir/scmroot/gnutls
Cloning into '/var/lib/mock/dist-an23-build-518024-75360/root/chroot_tmpdir/scmroot/gnutls'...
$ git fetch origin c5eb4b4c0b852e401c6e8f6ab4d9568e70f53e41:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/gnutls
 * [new ref]         c5eb4b4c0b852e401c6e8f6ab4d9568e70f53e41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5eb4b4 update gnutls.spec.