$ git clone -n https://gitee.com/opencloudos-stream/libdb.git /var/lib/mock/dist-ocs23-riscv-rva23-build-361719-43171/root/chroot_tmpdir/scmroot/libdb
Cloning into '/var/lib/mock/dist-ocs23-riscv-rva23-build-361719-43171/root/chroot_tmpdir/scmroot/libdb'...
$ git fetch origin rva23:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libdb
 * [new branch]      rva23      -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85e60a4 Fix db.1.85 compat build with ISO C toolchains