$ git clone -n https://gitee.com/opencloudos-stream/libdnf.git /var/lib/mock/dist-ocs23-base-build-360224-42455/root/chroot_tmpdir/scmroot/libdnf
Cloning into '/var/lib/mock/dist-ocs23-base-build-360224-42455/root/chroot_tmpdir/scmroot/libdnf'...
$ git fetch origin 74b21d5ea8b996c5123020960f2001114ed15991:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libdnf
 * [new ref]         74b21d5ea8b996c5123020960f2001114ed15991 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74b21d5 !3 Backport: get_best_selectors only obsoleters of latest Merge pull request !3 from brucezhang/master