$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/protobuf.git /var/lib/mock/dist-an7-build-34793-16396/root/chroot_tmpdir/scmroot/protobuf
Cloning into '/var/lib/mock/dist-an7-build-34793-16396/root/chroot_tmpdir/scmroot/protobuf'...
$ git reset --hard origin/a7
HEAD is now at 93d6d2f update to protobuf-2.5.0-8.el7.src.rpm