$ git clone -n https://gitee.com/src-opencloudos-rpms/libldb.git /var/lib/mock/dist-oc8-build-74563-50728/root/chroot_tmpdir/scmroot/libldb
Cloning into '/var/lib/mock/dist-oc8-build-74563-50728/root/chroot_tmpdir/scmroot/libldb'...
$ git fetch origin 1a3e8fa00d02ddd97fca497dbd96b08223c8ae9d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libldb
 * [new ref]         1a3e8fa00d02ddd97fca497dbd96b08223c8ae9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a3e8fa import libldb-2.8.0-0.tl3