$ git clone -n https://gitee.com/lizhao2025/tcpdump.git /var/lib/mock/dist-an23-build-501037-74764/root/chroot_tmpdir/scmroot/tcpdump
Cloning into '/var/lib/mock/dist-an23-build-501037-74764/root/chroot_tmpdir/scmroot/tcpdump'...
$ git fetch origin 9992dc4f3fc1ac4ca1a61b8cea329f603c3d890a:KOJI_FETCH_HEAD
From https://gitee.com/lizhao2025/tcpdump
 * [new ref]         9992dc4f3fc1ac4ca1a61b8cea329f603c3d890a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9992dc4 Update code from upstream