$ git clone -n https://gitee.com/wency_cn/python-pynacl.git /var/lib/mock/dist-an23-build-494027-74584/root/chroot_tmpdir/scmroot/python-pynacl
Cloning into '/var/lib/mock/dist-an23-build-494027-74584/root/chroot_tmpdir/scmroot/python-pynacl'...
$ git fetch origin bc2f688aecaf87035cdac9656ae6f9a511f823fb:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-pynacl
 * [new ref]         bc2f688aecaf87035cdac9656ae6f9a511f823fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc2f688 Update code from upstream