$ git clone -n https://gitee.com/wency_cn/python-pynacl.git /var/lib/mock/dist-an23-build-491624-74530/root/chroot_tmpdir/scmroot/python-pynacl
Cloning into '/var/lib/mock/dist-an23-build-491624-74530/root/chroot_tmpdir/scmroot/python-pynacl'...
$ git fetch origin e4fc7444831edbc546cb317aa88f35ee455fbf98:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-pynacl
 * [new ref]         e4fc7444831edbc546cb317aa88f35ee455fbf98 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e4fc744 Update code from upstream