$ git clone -n https://gitee.com/wency_cn/python-cryptography.git /var/lib/mock/dist-an23-build-491378-74530/root/chroot_tmpdir/scmroot/python-cryptography
Cloning into '/var/lib/mock/dist-an23-build-491378-74530/root/chroot_tmpdir/scmroot/python-cryptography'...
$ git fetch origin ec847ac5f2f621b54ae95b65812037278e46ac42:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-cryptography
 * [new ref]         ec847ac5f2f621b54ae95b65812037278e46ac42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec847ac Update code from upstream