$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/tcpdump.git /var/lib/mock/dist-an7-updates-build-43414-21697/root/chroot_tmpdir/scmroot/tcpdump
Cloning into '/var/lib/mock/dist-an7-updates-build-43414-21697/root/chroot_tmpdir/scmroot/tcpdump'...
$ git reset --hard origin/a7
HEAD is now at 0f3b9f8 update to tcpdump-4.9.2-4.el7_7.1.src.rpm