$ git clone -n https://gitee.com/src-opencloudos-rpms/libtdb /var/lib/mock/dist-oc8-build-57636-15635/root/chroot_tmpdir/scmroot/libtdb
Cloning into '/var/lib/mock/dist-oc8-build-57636-15635/root/chroot_tmpdir/scmroot/libtdb'...
$ git fetch origin oc8:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtdb
 * [new branch]      oc8        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b001c43 import libtdb-1.4.8-3.el8