$ git clone -n https://gitee.com/opencloudos-stream/man-db.git /var/lib/mock/dist-ocs23-build-282725-27195/root/chroot_tmpdir/scmroot/man-db
Cloning into '/var/lib/mock/dist-ocs23-build-282725-27195/root/chroot_tmpdir/scmroot/man-db'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/man-db
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff746de Rebuilt for loongarch release