$ git clone -n https://gitee.com/src-opencloudos-rpms/xdp-tools /var/lib/mock/dist-oc8-build-20472-5048/root/chroot_tmpdir/scmroot/xdp-tools
Cloning into '/var/lib/mock/dist-oc8-build-20472-5048/root/chroot_tmpdir/scmroot/xdp-tools'...
$ git reset --hard oc8
fatal: ambiguous argument 'oc8': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'