$ git clone -n https://gitee.com/wency_cn/libreswan.git /var/lib/mock/dist-an23-build-492476-74553/root/chroot_tmpdir/scmroot/libreswan
Cloning into '/var/lib/mock/dist-an23-build-492476-74553/root/chroot_tmpdir/scmroot/libreswan'...
$ git fetch origin c16022a399bb02b91bd4ec2b43263399945c9e6a:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libreswan
 * [new ref]         c16022a399bb02b91bd4ec2b43263399945c9e6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c16022a Update code from upstream