$ git clone -n https://gitee.com/opencloudos-stream/tcpdump.git /var/lib/mock/dist-ocs23-base-build-315999-33166/root/chroot_tmpdir/scmroot/tcpdump
Cloning into '/var/lib/mock/dist-ocs23-base-build-315999-33166/root/chroot_tmpdir/scmroot/tcpdump'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/tcpdump
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5762547 !2 rebuild for libpcap-1.10.4-6 to support rdma Merge pull request !2 from 冯玮耀/master