$ git clone -n https://gitee.com/mgb01105731/tcpdump.git /var/lib/mock/dist-an23-build-274064-64220/root/chroot_tmpdir/scmroot/tcpdump
Cloning into '/var/lib/mock/dist-an23-build-274064-64220/root/chroot_tmpdir/scmroot/tcpdump'...
$ git fetch origin a952d5903c1da37c3fb3b63e91e810dcbb3e7ed5:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/tcpdump
 * [new ref]         a952d5903c1da37c3fb3b63e91e810dcbb3e7ed5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a952d59 init upstream from version 4.99.4