$ git clone -n https://gitee.com/src-opencloudos-rpms/tcpdump.git /var/lib/mock/dist-oc9-build-166329-79767/root/chroot_tmpdir/scmroot/tcpdump
Cloning into '/var/lib/mock/dist-oc9-build-166329-79767/root/chroot_tmpdir/scmroot/tcpdump'...
$ git fetch origin 31658c7c66fed987c7b1371ed78370479b24ec71:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/tcpdump
 * [new ref]         31658c7c66fed987c7b1371ed78370479b24ec71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31658c7 import tcpdump-4.99.4-4.tl4